SUSE update for the Linux Kernel

Published: 2023-10-11

Risk	Medium
Patch available	YES
Number of vulnerabilities	12
CVE-ID	CVE-2023-1206 CVE-2023-39192 CVE-2023-39193 CVE-2023-39194 CVE-2023-4155 CVE-2023-42753 CVE-2023-42754 CVE-2023-4389 CVE-2023-4622 CVE-2023-4623 CVE-2023-4921 CVE-2023-5345
CWE-ID	CWE-400 CWE-125 CWE-362 CWE-787 CWE-476 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE Real Time Module Operating systems & Components / Operating system SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system kernel-rt Operating systems & Components / Operating system package or component kernel-rt_debug Operating systems & Components / Operating system package or component kernel-rt-debugsource Operating systems & Components / Operating system package or component kernel-rt-vdso-debuginfo Operating systems & Components / Operating system package or component cluster-md-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-rt-livepatch Operating systems & Components / Operating system package or component kernel-rt_debug-debuginfo Operating systems & Components / Operating system package or component kernel-rt-extra Operating systems & Components / Operating system package or component kernel-rt-vdso Operating systems & Components / Operating system package or component kernel-rt_debug-vdso-debuginfo Operating systems & Components / Operating system package or component gfs2-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-rt-devel-debuginfo Operating systems & Components / Operating system package or component kernel-rt-optional-debuginfo Operating systems & Components / Operating system package or component dlm-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo Operating systems & Components / Operating system package or component cluster-md-kmp-rt Operating systems & Components / Operating system package or component dlm-kmp-rt Operating systems & Components / Operating system package or component kselftests-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-rt-debuginfo Operating systems & Components / Operating system package or component kernel-rt-livepatch-devel Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150500_13_21-rt Operating systems & Components / Operating system package or component kernel-rt_debug-devel-debuginfo Operating systems & Components / Operating system package or component kernel-rt-optional Operating systems & Components / Operating system package or component kernel-rt_debug-livepatch-devel Operating systems & Components / Operating system package or component kernel-syms-rt Operating systems & Components / Operating system package or component kernel-rt_debug-debugsource Operating systems & Components / Operating system package or component kernel-rt-devel Operating systems & Components / Operating system package or component kselftests-kmp-rt Operating systems & Components / Operating system package or component gfs2-kmp-rt Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource Operating systems & Components / Operating system package or component kernel-rt-extra-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-rt Operating systems & Components / Operating system package or component kernel-rt_debug-devel Operating systems & Components / Operating system package or component kernel-rt_debug-vdso Operating systems & Components / Operating system package or component reiserfs-kmp-rt-debuginfo Operating systems & Components / Operating system package or component reiserfs-kmp-rt Operating systems & Components / Operating system package or component ocfs2-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-devel-rt Operating systems & Components / Operating system package or component kernel-source-rt Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 12 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU77953

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1206

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a hash collision flaw in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when an attacker makes a new kind of SYN flood attack. A remote attacker can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU81921

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39192

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary condition within the the u32_match_it() function in Netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and gain access to sensitive information.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU81920

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39193

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the sctp_mt_check() function in Netfilter subsystem in Linux kernel. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU81919

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39194

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the XFRM subsystem in Linux kernel. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Race condition

EUVDB-ID: #VU79488

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4155

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in KVM AMD Secure Encrypted Virtualization (SEV) in Linux kernel. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds write

EUVDB-ID: #VU81663

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42753

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) NULL pointer dereference

EUVDB-ID: #VU81452

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42754

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the ipv4_send_dest_unreach() function in net/ipv4/route.c. A local user with CAP_NET_ADMIN permissions can perform a denial of service (DoS) attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Use-after-free

EUVDB-ID: #VU81925

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4389

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the btrfs_get_root_ref() function in fs/btrfs/disk-io.c. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Use-after-free

EUVDB-ID: #VU80583

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4622

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the unix_stream_sendpage() function in af_unix component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Use-after-free

EUVDB-ID: #VU81664

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4623

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the Linux kernel net/sched: sch_hfsc (HFSC qdisc traffic control) component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Use-after-free

EUVDB-ID: #VU81693

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4921

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the qfq_dequeue() function within the the Linux kernel's net/sched: sch_qfq component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Use-after-free

EUVDB-ID: #VU81691

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5345

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the smb3_fs_context_parse_param() function in fs/smb/client component. A remote attacker can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

SUSE Real Time Module: 15-SP5

SUSE Linux Enterprise Live Patching: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

openSUSE Leap: 15.5

kernel-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug: before 5.14.21-150500.13.21.1

kernel-rt-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-vdso-debuginfo: before 5.14.21-150500.13.21.1

cluster-md-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch: before 5.14.21-150500.13.21.1

kernel-rt_debug-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-extra: before 5.14.21-150500.13.21.1

kernel-rt-vdso: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso-debuginfo: before 5.14.21-150500.13.21.1

gfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional-debuginfo: before 5.14.21-150500.13.21.1

dlm-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo: before 1-150500.11.3.1

cluster-md-kmp-rt: before 5.14.21-150500.13.21.1

dlm-kmp-rt: before 5.14.21-150500.13.21.1

kselftests-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-livepatch-5_14_21-150500_13_21-rt: before 1-150500.11.3.1

kernel-rt_debug-devel-debuginfo: before 5.14.21-150500.13.21.1

kernel-rt-optional: before 5.14.21-150500.13.21.1

kernel-rt_debug-livepatch-devel: before 5.14.21-150500.13.21.1

kernel-syms-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-debugsource: before 5.14.21-150500.13.21.1

kernel-rt-devel: before 5.14.21-150500.13.21.1

kselftests-kmp-rt: before 5.14.21-150500.13.21.1

gfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource: before 1-150500.11.3.1

kernel-rt-extra-debuginfo: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt: before 5.14.21-150500.13.21.1

kernel-rt_debug-devel: before 5.14.21-150500.13.21.1

kernel-rt_debug-vdso: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

reiserfs-kmp-rt: before 5.14.21-150500.13.21.1

ocfs2-kmp-rt-debuginfo: before 5.14.21-150500.13.21.1

kernel-devel-rt: before 5.14.21-150500.13.21.1

kernel-source-rt: before 5.14.21-150500.13.21.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234035-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.