SUSE update for the Linux Kernel (Live Patch 37 for SLE 12 SP5)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-4378 CVE-2022-43945 |
| CWE-ID | CWE-121 CWE-119 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system kgraft-patch-4_12_14-122_139-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) 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 37 for SLE 12 SP5) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Live Patching: 12-SP5
kgraft-patch-4_12_14-122_139-default: before 2-2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:kgraft-patch-4_12_14-122_139-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224510-1/
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.
2) 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 37 for SLE 12 SP5) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Live Patching: 12-SP5
kgraft-patch-4_12_14-122_139-default: before 2-2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:kgraft-patch-4_12_14-122_139-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2022/suse-su-20224510-1/
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.
