{"id":"CVE-2011-4869","details":"validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528.","modified":"2025-08-09T19:01:27Z","published":"2011-12-20T11:55:08Z","references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/47326"},{"type":"FIX","url":"http://unbound.nlnetlabs.nl/downloads/CVE-2011-4528.txt"},{"type":"ADVISORY","url":"http://www.debian.org/security/2011/dsa-2370"},{"type":"WEB","url":"http://www.kb.cert.org/vuls/id/209659"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071525.html"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071535.html"},{"type":"WEB","url":"http://osvdb.org/77910"},{"type":"WEB","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71868"}],"schema_version":"1.7.3"}