{"id":"DEBIAN-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":"2026-08-25T02:47:37.389561157Z","published":"2011-01-28T16:00:04.673Z","upstream":["CVE-2011-0520"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2011-0520"}],"affected":[{"package":{"name":"maradns","ecosystem":"Debian:11","purl":"pkg:deb/debian/maradns?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.03-1.1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-0520.json"}}],"schema_version":"1.9.0"}