{"id":"CVE-2021-21779","details":"A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.","modified":"2026-03-13T00:45:38.941570Z","published":"2021-07-08T12:15:09.903Z","related":["ALSA-2021:4381","MGASA-2021-0400","SUSE-SU-2021:2598-1","SUSE-SU-2021:2600-1","SUSE-SU-2021:2762-1","openSUSE-SU-2021:1101-1","openSUSE-SU-2021:2598-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4945"},{"type":"ARTICLE","url":"http://www.openwall.com/lists/oss-security/2021/07/23/1"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"2.30.4"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]},{"events":[{"introduced":"0"},{"last_affected":"34"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21779.json"}}],"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"}]}