{"id":"DEBIAN-CVE-2019-11391","details":"An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with $a# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity","modified":"2026-09-09T07:00:45.778058724Z","published":"2019-04-21T02:29:00.487Z","upstream":["CVE-2019-11391"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2019-11391"}],"affected":[{"package":{"name":"modsecurity-crs","ecosystem":"Debian:12","purl":"pkg:deb/debian/modsecurity-crs?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.4-1","3.3.4-1+deb12u1","3.3.4-1+deb12u2","3.3.4-1+deb12u3","3.3.5-1","3.3.5-2","3.3.6-1","3.3.7-1","3.3.8-1","3.3.9-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-11391.json"}},{"package":{"name":"modsecurity-crs","ecosystem":"Debian:13","purl":"pkg:deb/debian/modsecurity-crs?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.7-1","3.3.7-1+deb13u1","3.3.7-1+deb13u2","3.3.8-1","3.3.9-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-11391.json"}},{"package":{"name":"modsecurity-crs","ecosystem":"Debian:14","purl":"pkg:deb/debian/modsecurity-crs?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.7-1","3.3.8-1","3.3.9-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-11391.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}