SUSE update for the Linux Kernel (Live Patch 45 for SLE 15 SP3)

Published: 2024-08-07

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-26923 CVE-2024-35950
CWE-ID	CWE-667 CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	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 High Performance Computing 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system kernel-livepatch-5_3_18-150300_59_164-preempt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_164-preempt Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_164-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_164-default Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP3_Update_45-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_49-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_194-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_194-default-debuginfo Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper locking

EUVDB-ID: #VU92035

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-2024-26923

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the unix_gc() function in net/unix/garbage.c due to garbage collector does not take into account the risk of embryo getting enqueued during the garbage collection. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 45 for SLE 15 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

openSUSE Leap: 15.3

kernel-livepatch-5_3_18-150300_59_164-preempt-debuginfo: before 2-150300.7.6.1

kernel-livepatch-5_3_18-150300_59_164-preempt: before 2-150300.7.6.1

kernel-livepatch-5_3_18-150300_59_164-default-debuginfo: before 2-150300.7.6.1

kernel-livepatch-5_3_18-150300_59_164-default: before 2-150300.7.6.1

kernel-livepatch-SLE15-SP3_Update_45-debugsource: before 2-150300.7.6.1

kernel-livepatch-SLE15-SP2_Update_49-debugsource: before 2-150200.5.6.1

kernel-livepatch-5_3_18-150200_24_194-default: before 2-150200.5.6.1

kernel-livepatch-5_3_18-150200_24_194-default-debuginfo: before 2-150200.5.6.1

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20242797-1/

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: #VU92212

Risk: Low

CVSSv3.1: 7.7 [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-2024-35950

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 drm_client_modeset_probe() function in drivers/gpu/drm/drm_client_modeset.c. A local user can escalate privileges on the system.