#VU86807 Out-of-bounds read in c-ares - CVE-2024-25629
Published: February 26, 2024
Vulnerability identifier: #VU86807
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-25629
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
c-ares
c-ares
Software vendor:
c-ares.haxx.se
c-ares.haxx.se
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
ares__read_line() function when parsing local configuration files, such
as `/etc/resolv.conf`, `/etc/nsswitch.conf`, or `HOSTALIASES` file. A
local user can insert a NULL character as the first character in a new
line into one of the configuration files and crash the application.
Remediation
Install updates from vendor's website.