SB2025121313 - Ubuntu update for c-ares
Published: December 13, 2025
Security Bulletin ID
SB2025121313
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-62408)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a use-after-free error within the read_answer() function when process_answer() terminates a query such as after maximum attempts. A remote attacker can perform a denial of service attack.
Note, the vulnerability exists due to an incomplete fix for #VU107155 (CVE-2025-31498).
Remediation
Install update from vendor's website.