{"id":"CVE-2019-11757","details":"When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2.","modified":"2026-04-16T04:33:30.589043863Z","published":"2020-01-08T20:15:12.453Z","related":["SUSE-SU-2019:14246-1","SUSE-SU-2019:2871-1","SUSE-SU-2019:2872-1","SUSE-SU-2019:2912-1","openSUSE-SU-2019:2451-1","openSUSE-SU-2019:2452-1","openSUSE-SU-2019:2459-1","openSUSE-SU-2019:2464-1","openSUSE-SU-2024:10600-1","openSUSE-SU-2024:10601-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2019-33/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2019-34/"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2019-35/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-10"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4335-1/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1577107"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11757.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"70.0"}]},{"events":[{"introduced":"0"},{"fixed":"68.2"}]},{"events":[{"introduced":"0"},{"fixed":"68.2"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}