{"id":"CVE-2011-0520","details":"The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.","modified":"2026-04-10T03:41:37.051521Z","published":"2011-01-28T16:00:04Z","references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/43027"},{"type":"ADVISORY","url":"http://secunia.com/advisories/43107"},{"type":"ADVISORY","url":"http://www.debian.org/security/2011/dsa-2196"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2011/0699"},{"type":"WEB","url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834"},{"type":"WEB","url":"http://osvdb.org/70630"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2011/01/24/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2011/01/24/6"},{"type":"WEB","url":"http://www.securityfocus.com/bid/45966"},{"type":"WEB","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/64885"}],"schema_version":"1.7.5"}