{"id":"DEBIAN-CVE-2007-1661","details":"Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex patterns in non-UTF-8 mode, which allows context-dependent attackers to obtain sensitive information or cause a denial of service (crash), as demonstrated by the \"\\X?\\d\" and \"\\P{L}?\\d\" patterns.","modified":"2026-09-01T20:02:32.669554751Z","published":"2007-11-07T23:46:00Z","upstream":["CVE-2007-1661"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2007-1661"}],"affected":[{"package":{"name":"glib2.0","ecosystem":"Debian:12","purl":"pkg:deb/debian/glib2.0?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.3-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-1661.json"}},{"package":{"name":"glib2.0","ecosystem":"Debian:13","purl":"pkg:deb/debian/glib2.0?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.3-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-1661.json"}},{"package":{"name":"glib2.0","ecosystem":"Debian:14","purl":"pkg:deb/debian/glib2.0?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14.3-1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-1661.json"}},{"package":{"name":"pcre3","ecosystem":"Debian:12","purl":"pkg:deb/debian/pcre3?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-1661.json"}}],"schema_version":"1.9.0"}