SUSE update for the Linux Kernel (Live Patch 41 for SLE 15 SP3)

1) Race condition

EUVDB-ID: #VU85022

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-2023-6531

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 when the unix garbage collector's deletion of a SKB races with unix_stream_read_generic() on the socket that the SKB is queued on. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 41 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_150-preempt: before 3-150300.2.3

kernel-livepatch-5_3_18-150300_59_150-preempt-debuginfo: before 3-150300.2.3

kernel-livepatch-5_3_18-150300_59_150-default: before 3-150300.2.3

kernel-livepatch-5_3_18-150300_59_150-default-debuginfo: before 3-150300.2.3

kernel-livepatch-SLE15-SP3_Update_41-debugsource: before 3-150300.2.3

kernel-livepatch-5_3_18-150200_24_175-default: before 4-150200.2.3

kernel-livepatch-SLE15-SP2_Update_44-debugsource: before 4-150200.2.3

kernel-livepatch-5_3_18-150200_24_175-default-debuginfo: before 4-150200.2.3

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241054-1/

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.