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Package "libc-ares-dev"

Name: libc-ares-dev

Description:

asynchronous name resolver - development files
Latest version: 1.27.0-1.0ubuntu1.1
Release: noble (24.04)
Level: security
Repository: main
Head package: c-ares
Homepage: https://c-ares.org/

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base main 1.27.0-1.0ubuntu1

Changelog

Version: 1.27.0-1.0ubuntu1.1 2026-10-21 19:18:01 UTC

c-ares (1.27.0-1.0ubuntu1.1) noble-security; urgency=medium

  * SECURITY UPDATE: denial of service via unvalidated DNS header record counts
    - debian/patches/CVE-2026-69186.patch: validate RR counts before
      preallocation to reject malformed packets early (#1134) in
      src/lib/ares_dns_parse.c, test/ares-test-parse.cc.
    - CVE-2026-69186
  * SECURITY UPDATE: denial of service via unbounded DNS name
    - debian/patches/CVE-2026-69184.patch: [Backport v1.34] enforce 255 octet
      name limit when parsing dns names (#1210) in src/lib/ares_dns_name.c,
      test/ares-test-parse.cc.
    - CVE-2026-69184

 -- Isabel Garcia Contreras Tue, 20 Oct 2026 08:26:59 -0400
CVE-2026-69186 c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_parse() trusts the attacker-controlled ANCOUNT, NSCOUNT, and ARCOUNT fields bef
CVE-2026-69184 c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_name_parse() enforces backward DNS compression pointers but does not bound the


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