{"id":"CVE-2018-15856","details":"An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.","modified":"2026-09-05T08:04:27.381446Z","published":"2018-08-25T21:29:01.860Z","related":["SUSE-SU-2018:3685-1","SUSE-SU-2024:0037-1","openSUSE-SU-2024:11014-1"],"database_specific":{"unresolved_ranges":[{"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":[{"introduced":"14.04"},{"last_affected":"14.04"},{"introduced":"16.04"},{"last_affected":"16.04"},{"introduced":"18.04"},{"last_affected":"18.04"}],"source":"CPE_STRING","vendor_product":"canonical:ubuntu_linux"}]},"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/842e4351c2c97de6051cab6ce36b4a81e709a0e1"},{"type":"FIX","url":"https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/xkbcommon/libxkbcommon","events":[{"introduced":"0"},{"fixed":"87046f56efc89d3b0771df9b4fefcda39ade3dd1"},{"fixed":"842e4351c2c97de6051cab6ce36b4a81e709a0e1"}],"database_specific":{"cpe":"cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.8.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"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":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-15856.json","vanir_signatures_modified":"2026-09-05T08:04:27Z","vanir_signatures":[{"id":"CVE-2018-15856-4feb5e44","signature_type":"Function","signature_version":"v1","source":"https://github.com/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1","target":{"file":"src/compose/parser.c","function":"lex"},"deprecated":false,"digest":{"function_hash":"111084396536791922603128660627799779023","length":2866}},{"signature_version":"v1","source":"https://github.com/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1","target":{"file":"src/compose/parser.c"},"deprecated":false,"digest":{"line_hashes":["339976281554706251715786465784200783707","286489673923724958058425891237163149150","213471127827195187591013137219067204299","314939995327740885430641703664042403296"],"threshold":0.9},"id":"CVE-2018-15856-72580473","signature_type":"Line"}]}}],"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"}]}