Anolis OS update for kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-2639 |
| CWE-ID | CWE-191 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
Anolis OS Operating systems & Components / Operating system python3-perf Operating systems & Components / Operating system package or component kernel-modules-internal Operating systems & Components / Operating system package or component kernel-modules-extra Operating systems & Components / Operating system package or component kernel-modules Operating systems & Components / Operating system package or component kernel-debug-modules-extra Operating systems & Components / Operating system package or component kernel-debug-modules Operating systems & Components / Operating system package or component kernel-debug-core Operating systems & Components / Operating system package or component kernel-core Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component kernel-tools-libs-devel Operating systems & Components / Operating system package or component kernel-tools-libs Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-headers Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component kernel-debug-devel Operating systems & Components / Operating system package or component kernel-debug Operating systems & Components / Operating system package or component kernel Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component |
| Vendor | OpenAnolis |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Integer underflow
EUVDB-ID: #VU66812
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-2022-2639
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer underflow within the reserve_sfa_size() function in the openvswitch kernel module in Linux kernel. A local user can trigger an out-of-bounds read error and crash the system or escalate privileges.
Mitigation
Install updates from vendor's repository.
Vulnerable software versionsAnolis OS: 8
python3-perf: before 4.19.91-26.4
kernel-modules-internal: before 4.19.91-26.4
kernel-modules-extra: before 4.19.91-26.4
kernel-modules: before 4.19.91-26.4
kernel-debug-modules-extra: before 4.19.91-26.4
kernel-debug-modules: before 4.19.91-26.4
kernel-debug-core: before 4.19.91-26.4
kernel-core: before 4.19.91-26.4
perf: before 4.19.91-26.4
kernel-tools-libs-devel: before 4.19.91-26.4
kernel-tools-libs: before 4.19.91-26.4
kernel-tools: before 4.19.91-26.4
kernel-headers: before 4.19.91-26.4
kernel-devel: before 4.19.91-26.4
kernel-debug-devel: before 4.19.91-26.4
kernel-debug: before 4.19.91-26.4
kernel: before 4.19.91-26.4
bpftool: before 4.19.91-26.4
CPE2.3- cpe:2.3:o:openanolis:anolis_os:8:*:*:*:*:*:*:*
- cpe:2.3:o:openanolis:python3-perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-modules-internal:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-modules-extra:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-modules:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-debug-modules-extra:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-debug-modules:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-debug-core:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-core:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-tools-libs-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-tools-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-tools:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-headers:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-debug-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel-debug:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:kernel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:o:openanolis:bpftool:*:*:*:*:*:anolis_os:*:*
https://anas.openanolis.cn/errata/detail/ANSA-2022:0692
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.
