SB2024032956 - Fedora 40 update for c-ares
Published: March 29, 2024
Security Bulletin ID
SB2024032956
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2024-25629)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 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
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 update from vendor's website.