SUSE update for the Linux Kernel (Live Patch 2 for SLE 15 SP6)

1) Use-after-free

EUVDB-ID: #VU94224

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-2024-40909

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 bpf_obj_get(), bpf_link_defer_dealloc_mult_rcu_gp() and bpf_link_free() functions in kernel/bpf/syscall.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 2 for SLE 15 SP6) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP6

SUSE Linux Enterprise Real Time 15: SP6

openSUSE Leap: 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP6

SUSE Linux Enterprise Server 15: SP6

kernel-livepatch-6_4_0-150600_23_14-default: before 2-150600.13.6.3

kernel-livepatch-SLE15-SP6_Update_2-debugsource: before 2-150600.13.6.3

kernel-livepatch-6_4_0-150600_23_14-default-debuginfo: before 2-150600.13.6.3

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP6:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20243398-1/

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.