VulnerabilityModified
CVE-2018-15864
Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y 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, because a map access attempt can…
MEDIUM 5.5EPSS 0.43%
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
Description
Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y 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, because a map access attempt can occur for a map that was never created.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.43% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- xkbcommon/libxkbcommon · xkbcommon/xkbcommon · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- https://access.redhat.com/errata/RHSA-2019:2079
- https://github.com/xkbcommon/libxkbcommon/commit/a8ea7a1d3daa7bdcb877615ae0a252c189153bd2Patch, Third Party Advisory
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201810-05Third Party Advisory
- https://usn.ubuntu.com/3786-1/Third Party Advisory
- https://usn.ubuntu.com/3786-2/Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2079
- https://github.com/xkbcommon/libxkbcommon/commit/a8ea7a1d3daa7bdcb877615ae0a252c189153bd2Patch, Third Party Advisory
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201810-05Third Party Advisory
- https://usn.ubuntu.com/3786-1/Third Party Advisory
- https://usn.ubuntu.com/3786-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.