SUSE update for the Linux Kernel (Live Patch 10 for SLE 15 SP3)

1) Race condition

EUVDB-ID: #VU81665

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-4001

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 in kernel/bpf/syscall.c in Linux kernel ebpf. A local user can exploit the race between bpf_map_update_elem and bpf_map_freeze and modify the frozen mapped address space.

Mitigation

Update the affected package the Linux Kernel (Live Patch 10 for SLE 15 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Module for Live Patching: 15-SP3

SUSE Linux Enterprise Micro: 5.1

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

kernel-livepatch-SLE15-SP3_Update_9-debugsource: before 6-150300.2.1

kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_5-debugsource: before 9-150300.2.1

kernel-livepatch-SLE15-SP3_Update_10-debugsource: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default-debuginfo: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default: before 5-150300.2.1

kernel-livepatch-5_3_18-59_34-default-debuginfo: before 6-150300.2.1

kernel-livepatch-5_3_18-59_34-default: before 6-150300.2.1

kernel-livepatch-5_3_18-59_27-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_27-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_19-default-debuginfo: before 9-150300.2.1

kernel-livepatch-5_3_18-59_19-default: before 9-150300.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_7-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_6-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_10-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/

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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU61245

Risk: Low

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:Clear]

CVE-ID: CVE-2022-0492

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to a logic error within the cgroup_release_agent_write() function in  kernel/cgroup/cgroup-v1.c. A local user can use the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation.

Mitigation

Update the affected package the Linux Kernel (Live Patch 10 for SLE 15 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Module for Live Patching: 15-SP3

SUSE Linux Enterprise Micro: 5.1

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

kernel-livepatch-SLE15-SP3_Update_9-debugsource: before 6-150300.2.1

kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_5-debugsource: before 9-150300.2.1

kernel-livepatch-SLE15-SP3_Update_10-debugsource: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default-debuginfo: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default: before 5-150300.2.1

kernel-livepatch-5_3_18-59_34-default-debuginfo: before 6-150300.2.1

kernel-livepatch-5_3_18-59_34-default: before 6-150300.2.1

kernel-livepatch-5_3_18-59_27-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_27-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_19-default-debuginfo: before 9-150300.2.1

kernel-livepatch-5_3_18-59_19-default: before 9-150300.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_7-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_6-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_10-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/

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. However, a fully functional exploit for this vulnerability is available.

3) Heap-based buffer overflow

EUVDB-ID: #VU61271

Risk: Low

CVSSv4.0: 7.1 [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:P/U:Clear]

CVE-ID: CVE-2022-25636

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error in net/netfilter/nf_dup_netdev.c in the Linux kernel, related to nf_tables_offload. A local user can trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 10 for SLE 15 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Module for Live Patching: 15-SP3

SUSE Linux Enterprise Micro: 5.1

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

kernel-livepatch-SLE15-SP3_Update_9-debugsource: before 6-150300.2.1

kernel-livepatch-SLE15-SP3_Update_7-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_6-debugsource: before 7-150300.2.1

kernel-livepatch-SLE15-SP3_Update_5-debugsource: before 9-150300.2.1

kernel-livepatch-SLE15-SP3_Update_10-debugsource: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default-debuginfo: before 5-150300.2.1

kernel-livepatch-5_3_18-59_37-default: before 5-150300.2.1

kernel-livepatch-5_3_18-59_34-default-debuginfo: before 6-150300.2.1

kernel-livepatch-5_3_18-59_34-default: before 6-150300.2.1

kernel-livepatch-5_3_18-59_27-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_27-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default-debuginfo: before 7-150300.2.1

kernel-livepatch-5_3_18-59_24-default: before 7-150300.2.1

kernel-livepatch-5_3_18-59_19-default-debuginfo: before 9-150300.2.1

kernel-livepatch-5_3_18-59_19-default: before 9-150300.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_9-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_7-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_6-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp3_update_10-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_37-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_34-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_27-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_24-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_3_18-59_19-default:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/

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. However, proof of concept for this vulnerability is available.