Mageia alert MGASA-2026-0343 (c-ares)

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Mageia Updates <updates-announce@ml.mageia.org>
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updates-announce@ml.mageia.org
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[updates-announce] MGASA-2026-0343: Updated c-ares packages fix security vulnerabilities
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Mon, 31 Aug 2026 18:22:54 +0200
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<20260831162254.A8E049FEAF@duvel.mageia.org>
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Article
MGASA-2026-0343 - Updated c-ares packages fix security vulnerabilities

Publication date: 31 Aug 2026
URL: https://advisories.mageia.org/MGASA-2026-0343.html
Type: security
Affected Mageia releases: 10
CVE: CVE-2026-33630,
     CVE-2026-69184,
     CVE-2026-69186

Description:
Use-after-free / double-free in c-ares query-completion handling,
remotely triggerable via ares_getaddrinfo() over TCP. (CVE-2026-33630)
CPU-exhaustion denial of service via unbounded DNS name compression
pointer chains. (CVE-2026-69184)
Memory-amplification denial of service via unvalidated DNS header record
counts. (CVE-2026-69186)

References:
- https://bugs.mageia.org/show_bug.cgi?id=35847
- https://www.openwall.com/lists/oss-security/2026/07/06/8
- https://github.com/c-ares/c-ares/security/advisories/GHSA...
- https://github.com/c-ares/c-ares/security/advisories/GHSA...
- https://github.com/c-ares/c-ares/security/advisories/GHSA...
-
https://lists.fedoraproject.org/archives/list/package-ann...
- https://www.cve.org/CVERecord?id=CVE-2026-33630
- https://www.cve.org/CVERecord?id=CVE-2026-69184
- https://www.cve.org/CVERecord?id=CVE-2026-69186

SRPMS:
- 10/core/c-ares-1.34.8-1.mga10