{"id":"CVE-2018-15855","details":"Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because the XkbFile for an xkb_geometry section was mishandled.","modified":"2026-10-20T13:29:27.996658692Z","published":"2018-08-25T21:29:01.733Z","related":["SUSE-SU-2018:3685-1","SUSE-SU-2024:0037-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"source":"CPE_STRING","range":[{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"}]}],"vendor_product":"canonical:ubuntu_linux","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:*:*:*"]}]},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2079"},{"type":"ADVISORY","url":"https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html"},{"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/917636b1d0d70205a13f89062b95e3a0fc31d4ff"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/xkbcommon/libxkbcommon","events":[{"introduced":"0"},{"fixed":"87046f56efc89d3b0771df9b4fefcda39ade3dd1"},{"fixed":"917636b1d0d70205a13f89062b95e3a0fc31d4ff"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"0.8.1"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:xkbcommon_project:xkbcommon:*:*:*:*:*:*:*:*"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"917636b1d0d70205a13f89062b95e3a0fc31d4ff"}]}]}}],"versions":["xkbcommon-0.8.0","xkbcommon-0.7.2","xkbcommon-0.7.1","xkbcommon-0.7.0","xkbcommon-0.6.1","xkbcommon-0.6.0","xkbcommon-0.5.0","xkbcommon-0.4.3","xkbcommon-0.4.2","xkbcommon-0.4.1","xkbcommon-0.4.0","xkbcommon-0.3.2","xkbcommon-0.3.1","xkbcommon-0.3.0","xkbcommon-0.2.0"],"database_specific":{"vanir_signatures_modified":"2026-10-20T13:29:27Z","source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15855.json","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/xkbcommon/libxkbcommon/commit/917636b1d0d70205a13f89062b95e3a0fc31d4ff","target":{"function":"CompileKeymap","file":"src/xkbcomp/keymap.c"},"deprecated":false,"digest":{"length":1332,"function_hash":"313427961432042723751513025005151541073"},"id":"CVE-2018-15855-2c02092e"},{"signature_type":"Line","signature_version":"v1","source":"https://github.com/xkbcommon/libxkbcommon/commit/917636b1d0d70205a13f89062b95e3a0fc31d4ff","target":{"file":"src/xkbcomp/keymap.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["88409033307862462165229164438251216293","122701994007965251946819529201359975982","332971833168997577573162901784827898012","252483941540618463363549744586113690502","201764178136538960686405894051010879341"]},"id":"CVE-2018-15855-97bd6938"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}