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Debian Trixie: c-ares Critical Denial of Service Advisory DSA-6084-1

debian
Calendar Grey December 18, 2025
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Discover critical updates for c-ares in Debian to mitigate denial of service risks effectively.
It was discovered that c-ares, a library that performs DNS requests and name resolution asynchronously, does not properly handle termination of queries which may result in denial o...
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Topics Covered

security advisory denial of service critical debian vulnerability c-ares

Summary

For the stable distribution (trixie), this problem has been fixed in
version 1.34.5-1+deb13u1.

We recommend that you upgrade your c-ares packages.

For the detailed security status of c-ares please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/source-package/c-ares

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: c-ares
CVE ID: CVE-2025-62408

Topics%20covered

Topics Covered

security advisory denial of service critical debian vulnerability c-ares

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