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7.5Hoch

CVE-2026-80274Validating resolver can abort while caching a mismatched NOQNAME proof

ISC BIND 9 Veröffentlicht: (vor 1 Monat)

Beschreibung

If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

Schwachstellentyp (CWE): CWE-617

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
isc bind 9.11.0 – ≤ 9.18.50
ISC BIND 9 9.11.0 – ≤ 9.18.50, 9.20.0 – ≤ 9.20.27, 9.21.0 – ≤ 9.21.25, 9.11.3-S1 – ≤ 9.18.50-S1, 9.20.9-S1 – ≤ 9.20.27-S1

Ubuntu-Korrekturen

  • USN-8969-1 Bind vulnerabilities Ubuntu 26.10, 26.04, 24.04, 22.04 · 03.11.2026 · bind9

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