SUSE update for the Linux Kernel (Live Patch 6 for SLE 15 SP5)

Published: 2024-04-24 | Updated: 2024-05-13

Risk	Low
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2023-5717 CVE-2024-1086 CVE-2024-26622
CWE-ID	CWE-787 CWE-416
Exploitation vector	Local
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Micro 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-livepatch-5_14_21-150500_55_31-default Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150500_55_31-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP5_Update_6-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_74-default Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_88-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_88-default Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP4_Update_15-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_74-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP4_Update_18-debugsource Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU83311

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-2023-5717

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

Exploit availability: No

Description

The vulnerability local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the Linux kernel's Linux Kernel Performance Events (perf) component. 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 (Live Patch 6 for SLE 15 SP5) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.3 - 5.5

SUSE Linux Enterprise Live Patching: 15-SP4 - 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

openSUSE Leap: 15.4 - 15.5

kernel-livepatch-5_14_21-150500_55_31-default: before 7-150500.2.1

kernel-livepatch-5_14_21-150500_55_31-default-debuginfo: before 7-150500.2.1

kernel-livepatch-SLE15-SP5_Update_6-debugsource: before 7-150500.2.1

kernel-livepatch-5_14_21-150400_24_74-default: before 10-150400.2.1

kernel-livepatch-5_14_21-150400_24_88-default-debuginfo: before 8-150400.2.1

kernel-livepatch-5_14_21-150400_24_88-default: before 8-150400.2.1

kernel-livepatch-SLE15-SP4_Update_15-debugsource: before 10-150400.2.1

kernel-livepatch-5_14_21-150400_24_74-default-debuginfo: before 10-150400.2.1

kernel-livepatch-SLE15-SP4_Update_18-debugsource: before 8-150400.2.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241406-1/

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.

2) Use-after-free

EUVDB-ID: #VU86577

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-1086

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

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 netfilter nf_tables component in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code on the system.