Buffer overflow in c-ares - CVE-2022-4904

 

Buffer overflow in c-ares - CVE-2022-4904

Published: February 24, 2023


Vulnerability identifier: #VU72557
CSH Severity: Low
CVSS v4.0: 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
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: c-ares.haxx.se
Affected software:
c-ares

Detailed vulnerability 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.


How to mitigate CVE-2022-4904

Install updates from vendor's website.

Sources