Anolis OS update for kernel(RHCK)3.10
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-4028 CVE-2021-4083 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Anolis OS Operating systems & Components / Operating system kernel-doc Operating systems & Components / Operating system package or component kernel-abi-whitelists Operating systems & Components / Operating system package or component python-perf 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 information about 2 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU60797
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-2021-4028
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 the RDMA listen()
function in Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with elevated privileges.
Install updates from vendor's repository.
Vulnerable software versionsAnolis OS: 7
kernel-doc: before 3.10.0-1160.62.1.0.1
kernel-abi-whitelists: before 3.10.0-1160.62.1.0.1
python-perf: before 3.10.0-1160.62.1.0.1
perf: before 3.10.0-1160.62.1.0.1
kernel-tools-libs-devel: before 3.10.0-1160.62.1.0.1
kernel-tools-libs: before 3.10.0-1160.62.1.0.1
kernel-tools: before 3.10.0-1160.62.1.0.1
kernel-headers: before 3.10.0-1160.62.1.0.1
kernel-devel: before 3.10.0-1160.62.1.0.1
kernel-debug-devel: before 3.10.0-1160.62.1.0.1
kernel-debug: before 3.10.0-1160.62.1.0.1
kernel: before 3.10.0-1160.62.1.0.1
bpftool: before 3.10.0-1160.62.1.0.1
CPE2.3- cpe:2.3:o:openanolis:anolis_os:7:*:*:*:*:*:*:*
- cpe:2.3:a:openanolis:kernel-doc:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-abi-whitelists:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:python-perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools-libs-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-headers:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-debug-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-debug:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bpftool:*:*:*:*:*:anolis_os:*:*
https://anas.openanolis.cn/errata/detail/ANSA-2022:0091
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) Use-after-free
EUVDB-ID: #VU61246
Risk: Low
CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-4083
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 within the Linux kernel's garbage collection for Unix domain socket file handlers. A local user can call close() and fget() simultaneously and can potentially trigger a race condition, which in turn leads to a use-after-free error and allows privilege escalation.
Install updates from vendor's repository.
Vulnerable software versionsAnolis OS: 7
kernel-doc: before 3.10.0-1160.62.1.0.1
kernel-abi-whitelists: before 3.10.0-1160.62.1.0.1
python-perf: before 3.10.0-1160.62.1.0.1
perf: before 3.10.0-1160.62.1.0.1
kernel-tools-libs-devel: before 3.10.0-1160.62.1.0.1
kernel-tools-libs: before 3.10.0-1160.62.1.0.1
kernel-tools: before 3.10.0-1160.62.1.0.1
kernel-headers: before 3.10.0-1160.62.1.0.1
kernel-devel: before 3.10.0-1160.62.1.0.1
kernel-debug-devel: before 3.10.0-1160.62.1.0.1
kernel-debug: before 3.10.0-1160.62.1.0.1
kernel: before 3.10.0-1160.62.1.0.1
bpftool: before 3.10.0-1160.62.1.0.1
CPE2.3- cpe:2.3:o:openanolis:anolis_os:7:*:*:*:*:*:*:*
- cpe:2.3:a:openanolis:kernel-doc:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-abi-whitelists:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:python-perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:perf:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools-libs-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-tools:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-headers:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-debug-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel-debug:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:kernel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bpftool:*:*:*:*:*:anolis_os:*:*
https://anas.openanolis.cn/errata/detail/ANSA-2022:0091
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.
