SUSE update for the Linux Kernel (Live Patch 22 for SLE 15 SP4)

1) Use-after-free

EUVDB-ID: #VU91597

Risk: Critical

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2024-36971

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a use-after-free error within the xfrm_link_failure() function in net/xfrm/xfrm_policy.c, within the dst_entry ip6_dst_check() and ip6_dst_check() functions in net/ipv6/route.c, within the dst_entry ipv4_dst_check() and ip_do_redirect() functions in net/ipv4/route.c. A remote attacker can send specially crafted packets to the system and execute arbitrary code.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package the Linux Kernel (Live Patch 22 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP3 - 15-SP4

SUSE Linux Enterprise Micro: 5.1 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP4

SUSE Linux Enterprise Server 15: SP3 - SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP3 - SP4

openSUSE Leap: 15.3 - 15.4

kernel-livepatch-SLE15-SP4_Update_22-debugsource: before 14-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default-debuginfo: before 14-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default: before 14-150400.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt: before 16-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt-debuginfo: before 16-150300.2.1

kernel-livepatch-SLE15-SP3_Update_40-debugsource: before 16-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default: before 16-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default-debuginfo: before 16-150300.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_22-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-150300_59_147-preempt:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-150300_59_147-preempt-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_40-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-150300_59_147-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-150300_59_147-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2025/suse-su-20250250-1/

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?

Yes. This vulnerability is being exploited in the wild.