SUSE update for the Linux Kernel (Live Patch 5 for SLE 15 SP4)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-39698 CVE-2022-4139 CVE-2022-4378 CVE-2022-43945 |
| CWE-ID | CWE-416 CWE-119 CWE-121 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #3 is available. |
| Vulnerable software |
SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system kernel-livepatch-SLE15-SP4_Update_5-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_33-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_33-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU61097
Risk: Low
CVSSv4.0: 5.9 [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:U/U:Clear]
CVE-ID: CVE-2021-39698
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in Linux kernel. A local user can run a specially crafted program to trigger the use-after-free error and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 5 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP4
SUSE Linux Enterprise Server: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-SP4
kernel-livepatch-SLE15-SP4_Update_5-debugsource: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default: before 2-150400.2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224542-1/
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) Buffer overflow
EUVDB-ID: #VU70460
Risk: Low
CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-4139
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the i915 kernel driver on Linux kernel. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 5 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP4
SUSE Linux Enterprise Server: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-SP4
kernel-livepatch-SLE15-SP4_Update_5-debugsource: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default: before 2-150400.2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224542-1/
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.
3) Stack-based buffer overflow
EUVDB-ID: #VU70442
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-2022-4378
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the __do_proc_dointvec() function. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel (Live Patch 5 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP4
SUSE Linux Enterprise Server: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-SP4
kernel-livepatch-SLE15-SP4_Update_5-debugsource: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default: before 2-150400.2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224542-1/
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.
4) Buffer overflow
EUVDB-ID: #VU69766
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-43945
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attacl.
The vulnerability exists due to a boundary error within the Linux kernel NFSD implementation. A remote attacker can send the RPC message over TCP with garbage data added at the end of the message, trigger memory corruption and perform a denial of service (DoS) attack.
Update the affected package the Linux Kernel (Live Patch 5 for SLE 15 SP4) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Live Patching: 15-SP4
SUSE Linux Enterprise Server: 15-SP4
SUSE Linux Enterprise Server for SAP Applications: 15-SP4
SUSE Linux Enterprise High Performance Computing: 15-SP4
kernel-livepatch-SLE15-SP4_Update_5-debugsource: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default-debuginfo: before 2-150400.2.1
kernel-livepatch-5_14_21-150400_24_33-default: before 2-150400.2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP4:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kernel-livepatch-sle15-sp4_update_5-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kernel-livepatch-5_14_21-150400_24_33-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224542-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
