{"action":"Upgrade libsass to 3.6.3-1 or later.","affected":[{"fixed":"3.6.3-1","introduced":"0"}],"component":"libsass","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["3.6.3-1"],"id":"tcs_01M5ND95TP3DNA3J59JPBRPZHA","modified_at":"2026-10-23T18:03:47.777804447Z","published_at":"2018-12-03T06:29:00.743Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-19797","https://security-tracker.debian.org/tracker/CVE-2018-19797"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-19797#Debian:13/libsass","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-19797"}],"summary":"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 c"}