{"id":"DEBIAN-CVE-2011-0421","details":"The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation.","modified":"2026-09-14T06:47:32.619940392Z","published":"2011-03-20T02:00:03.377Z","upstream":["CVE-2011-0421"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2011-0421"}],"affected":[{"package":{"name":"libzip","ecosystem":"Debian:12","purl":"pkg:deb/debian/libzip?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10-1"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-0421.json"}},{"package":{"name":"libzip","ecosystem":"Debian:13","purl":"pkg:deb/debian/libzip?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10-1"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-0421.json"}},{"package":{"name":"libzip","ecosystem":"Debian:14","purl":"pkg:deb/debian/libzip?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10-1"}]}],"ecosystem_specific":{"urgency":"low"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-0421.json"}}],"schema_version":"1.9.0"}