Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xkbcommon Project | Xkbcommon | < 0.8.1 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2019:2079
- https://github.com/xkbcommon/libxkbcommon/commit/917636b1d0d70205a13f89062b95e3aPatchThird Party Advisory
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlThird 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/917636b1d0d70205a13f89062b95e3aPatchThird Party Advisory
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlThird 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
FAQ
What is CVE-2018-15855?
CVE-2018-15855 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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...
How severe is CVE-2018-15855?
CVE-2018-15855 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-15855?
Check the references section above for vendor advisories and patch information. Affected products include: Xkbcommon Project Xkbcommon, Canonical Ubuntu Linux.