{"id":"UBUNTU-CVE-2021-33796","details":"In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.","modified":"2025-07-16T08:26:33.488853Z","published":"2023-07-07T18:15:00Z","withdrawn":"2025-07-18T16:46:52Z","upstream":["CVE-2021-33796"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33796"},{"type":"REPORT","url":"https://github.com/ccxvii/mujs/commit/7ef066a3bb95bf83e7c5be50d859e62e58fe8515"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-33796"}],"affected":[{"package":{"name":"mujs","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mujs@1.1.3-3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.3-3"}]}],"versions":["1.1.0-1","1.1.3-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1.3-3","binary_name":"libmujs-dev"},{"binary_version":"1.1.3-3","binary_name":"libmujs1"},{"binary_version":"1.1.3-3","binary_name":"libmujs1-dbgsym"},{"binary_version":"1.1.3-3","binary_name":"mujs"},{"binary_version":"1.1.3-3","binary_name":"mujs-dbgsym"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33796.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}