{"id":"CVE-2018-19797","details":"In LibSass 3.5.5, a NULL Pointer Dereference in the function Sass::Selector_List::populate_extends in SharedPtr.hpp (used by ast.cpp and ast_selectors.cpp) may cause a Denial of Service (application crash) via a crafted sass input file.","modified":"2026-04-10T04:07:36.683854Z","published":"2018-12-03T06:29:00.743Z","related":["MGASA-2020-0049","openSUSE-SU-2019:1791-1","openSUSE-SU-2019:1800-1","openSUSE-SU-2019:1883-1","openSUSE-SU-2024:10988-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.html"},{"type":"FIX","url":"https://github.com/sass/libsass/issues/2779"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sass/libsass","events":[{"introduced":"0"},{"last_affected":"39e30874b9a5dd6a802c20e8b0470ba44eeba929"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"3.5.5"}]}}],"versions":["2.1.0-beta","3.0","3.0.1","3.0.2","3.0rc1","3.0rc2","3.0rc4","3.1-alpha","3.1-alpha2","3.1.0","3.1.0-beta","3.1.0-beta.2","3.2.0","3.2.0-beta.1","3.2.0-beta.2","3.2.0-beta.3","3.2.0-beta.4","3.2.0-beta.5","3.2.0-beta.6","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.3.0","3.3.0-beta1","3.3.0-beta2","3.3.0-beta3","3.3.1","3.3.2","3.3.3","3.3.4","3.3.5","3.3.6","3.4.0","3.4.0-RC1","3.4.2","3.5.0","3.5.0.beta.1","3.5.0.beta.2","3.5.0.beta.3","3.5.1","3.5.2","3.5.3","3.5.4","3.5.5","RELEASE-1.0","v2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19797.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}