SUSE update for the Linux Kernel (Live Patch 30 for SLE 12 SP4)

1) Double Free

EUVDB-ID: #VU73766

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-2023-26545

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 double free in net/mpls/af_mpls.c during the renaming of a device. A local user can trigger a double free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 30 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 12: SP4

SUSE Linux Enterprise Server 12: SP4

SUSE Linux Enterprise High Performance Computing 12: SP4

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_105-default: before 8-2.3

kgraft-patch-4_12_14-95_108-default: before 6-2.3

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP4:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20231654-1/

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.