{"id":"DEBIAN-CVE-2007-4771","details":"Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack.  NOTE: some of these details are obtained from third party information.","modified":"2026-09-01T20:02:48.124805855Z","published":"2008-01-29T00:00:00Z","upstream":["CVE-2007-4771"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2007-4771"}],"affected":[{"package":{"name":"icu","ecosystem":"Debian:12","purl":"pkg:deb/debian/icu?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8-6"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-4771.json"}},{"package":{"name":"icu","ecosystem":"Debian:13","purl":"pkg:deb/debian/icu?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8-6"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-4771.json"}},{"package":{"name":"icu","ecosystem":"Debian:14","purl":"pkg:deb/debian/icu?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8-6"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-4771.json"}}],"schema_version":"1.9.0"}