{"id":"DEBIAN-CVE-2012-5370","details":"JRuby computes hash values without properly restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table, as demonstrated by a universal multicollision attack against the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4838.","modified":"2026-04-28T20:12:07.569116Z","published":"2012-11-28T13:03:10.057Z","upstream":["CVE-2012-5370"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2012-5370"}],"affected":[{"package":{"name":"jruby","ecosystem":"Debian:12","purl":"pkg:deb/debian/jruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5370.json"}},{"package":{"name":"jruby","ecosystem":"Debian:13","purl":"pkg:deb/debian/jruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5370.json"}},{"package":{"name":"jruby","ecosystem":"Debian:14","purl":"pkg:deb/debian/jruby?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-5370.json"}}],"schema_version":"1.7.5"}