{"id":"CVE-2018-15862","details":"Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.","modified":"2026-05-17T11:54:40.770891363Z","published":"2018-08-25T21:29:02.373Z","related":["SUSE-SU-2018:3685-1","SUSE-SU-2024:0037-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"14.04"},{"last_affected":"16.04"},{"last_affected":"18.04"}],"vendor_product":"canonical:ubuntu_linux","source":"CPE_FIELD","cpes":["cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"]},{"extracted_events":[{"last_affected":"0.8.1"}],"vendor_product":"xkbcommon:xkbcommon","source":"CPE_FIELD","cpes":["cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:*"]}]},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2079"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201810-05"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3786-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3786-2/"},{"type":"FIX","url":"https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371"},{"type":"FIX","url":"https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}