SUSE update for the Linux Kernel

Published: 2023-04-18

Risk	Medium
Patch available	YES
Number of vulnerabilities	16
CVE-ID	CVE-2017-5753 CVE-2021-3923 CVE-2022-4744 CVE-2023-0461 CVE-2023-1075 CVE-2023-1078 CVE-2023-1281 CVE-2023-1382 CVE-2023-1390 CVE-2023-1513 CVE-2023-1582 CVE-2023-28327 CVE-2023-28328 CVE-2023-28464 CVE-2023-28466 CVE-2023-28772
CWE-ID	CWE-200 CWE-401 CWE-415 CWE-416 CWE-843 CWE-787 CWE-476 CWE-835 CWE-665 CWE-362 CWE-119
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild.
Vulnerable software Subscribe	SUSE Real Time Module Operating systems & Components / Operating system SUSE Linux Enterprise Micro for Rancher Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system kernel-rt_debug Operating systems & Components / Operating system package or component kernel-rt Operating systems & Components / Operating system package or component kernel-source-rt Operating systems & Components / Operating system package or component kernel-devel-rt Operating systems & Components / Operating system package or component kernel-rt-debuginfo Operating systems & Components / Operating system package or component dlm-kmp-rt-debuginfo Operating systems & Components / Operating system package or component kernel-syms-rt Operating systems & Components / Operating system package or component kernel-rt-debugsource Operating systems & Components / Operating system package or component kernel-rt_debug-devel-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-rt-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-rt Operating systems & Components / Operating system package or component kernel-rt-devel-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 gfs2-kmp-rt Operating systems & Components / Operating system package or component gfs2-kmp-rt-debuginfo 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 kernel-rt_debug-debuginfo Operating systems & Components / Operating system package or component kernel-rt_debug-devel Operating systems & Components / Operating system package or component cluster-md-kmp-rt-debuginfo Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 16 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU9884

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2017-5753

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can perform a bounds check bypass, execute arbitrary code, conduct a side-channel attack and read sensitive memory information.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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?

Yes. This vulnerability is being exploited in the wild.

2) Memory leak

EUVDB-ID: #VU74626

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-2021-3923

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due memory leak within RDMA over infiniband implementation in Linux kernel. A local user can force the application to leak memory by sensing commands to the /dev/infiniband/rdma_cm device node and gain access to sensitive information.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Double Free

EUVDB-ID: #VU74053

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-2022-4744

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the tun_free_netdev() function in the Linux kernel’s TUN/TAP device driver. A local user can trigger a double 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 Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Use-after-free

EUVDB-ID: #VU72506

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-2023-0461

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 Upper Level Protocol (ULP) subsystem in Linux kernel caused by improper handling of sockets entering the LISTEN state in certain protocols. 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 Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Type Confusion

EUVDB-ID: #VU72700

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-2023-1075

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to a type confusion error within the tls_is_tx_ready() function in the net/tls stack of the Linux Kernel. A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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: #VU74054

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-2023-1078

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 within the rds_rm_zerocopy_callback() function in Linux kernel RDS (Reliable Datagram Sockets) protocol. 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 Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Use-after-free

EUVDB-ID: #VU74122

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-2023-1281

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 Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker 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 Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) NULL pointer dereference

EUVDB-ID: #VU74550

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1382

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 in net/tipc/topsrv.c within the TIPC protocol implementation in the Linux kernel. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Infinite loop

EUVDB-ID: #VU74631

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-2023-1390

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop in tipc_link_xmit() within the Linux kernel TIPC kernel module when parsing UDp packets. A remote attacker can send two small UDP packets to a system with a UDP bearer and consume all available CPU resources.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.

10) Improper Initialization

EUVDB-ID: #VU74630

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-2023-1513

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due to improper initialization when calling the KVM_GET_DEBUGREGS ioctl on 32-bit systems. A local user can run a specially crafted application to gain access to sensitive information.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) Race condition

EUVDB-ID: #VU74629

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1582

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 perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition within fs/proc/task_mmu.c. A local user can exploit the race and crash the kernel.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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) NULL pointer dereference

EUVDB-ID: #VU74772

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28327

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 unix_diag_get_exact() function in net/unix/diag.c. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.

13) NULL pointer dereference

EUVDB-ID: #VU74126

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28328

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 az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kernel. A local user can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.

14) Double Free

EUVDB-ID: #VU74147

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-2023-28464

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the hci_conn_cleanup() function in net/bluetooth/hci_conn.c in Linux kernel. A local user can trigger a double 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 Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.

15) Race condition

EUVDB-ID: #VU74628

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28466

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 caused by a missing lock_sock call within the do_tls_getsockopt() function in net/tls/tls_main.c. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.

16) Buffer overflow

EUVDB-ID: #VU74627

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-2023-28772

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the seq_buf_putmem_hex() function in lib/seq_buf.c. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

SUSE Real Time Module: 15-SP3

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

kernel-rt_debug: before 5.3.18-150300.124.1

kernel-rt: before 5.3.18-150300.124.1

kernel-source-rt: before 5.3.18-150300.124.1

kernel-devel-rt: before 5.3.18-150300.124.1

kernel-rt-debuginfo: before 5.3.18-150300.124.1

dlm-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-syms-rt: before 5.3.18-150300.124.1

kernel-rt-debugsource: before 5.3.18-150300.124.1

kernel-rt_debug-devel-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

ocfs2-kmp-rt: before 5.3.18-150300.124.1

kernel-rt-devel-debuginfo: before 5.3.18-150300.124.1

cluster-md-kmp-rt: before 5.3.18-150300.124.1

dlm-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt: before 5.3.18-150300.124.1

gfs2-kmp-rt-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-debugsource: before 5.3.18-150300.124.1

kernel-rt-devel: before 5.3.18-150300.124.1

kernel-rt_debug-debuginfo: before 5.3.18-150300.124.1

kernel-rt_debug-devel: before 5.3.18-150300.124.1

cluster-md-kmp-rt-debuginfo: before 5.3.18-150300.124.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231892-1/

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.