openEuler update for c-ares

1) Buffer overflow

EUVDB-ID: #VU72557

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-4904

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the config_sortlist() function. A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

c-ares-help: before 1.16.1-4

c-ares-devel: before 1.16.1-4

c-ares-debugsource: before 1.16.1-4

c-ares-debuginfo: before 1.16.1-4

c-ares: before 1.16.1-4

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:c-ares-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:c-ares-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:c-ares-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:c-ares-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:c-ares:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1091

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.