CVE-2018-15864
Last modified
CVE-2018-15864 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xkbcommon | Libxkbcommon | <= 0.8.1 |
| Xkbcommon | Xkbcommon | <= 0.8.1 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
References
- 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://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
Timeline
- Published
- Last Modified
- Status
- Modified
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