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VULNERABILITIES

CVE-2018-15858 Details

Description

Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c 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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/xkbcommon/libxkbcommon/commit/badb428e63387140720f22486b3acbd3d738859f CVEPatchThird Party Advisory
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html CVEMailing ListPatchThird Party Advisory
https://security.gentoo.org/glsa/201810-05 CVEThird Party Advisory
https://usn.ubuntu.com/3786-1/ CVEThird Party Advisory
https://usn.ubuntu.com/3786-2/ CVEThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]

Affected Products

ProductVersions
xkbcommon libxkbcommon
< 0.8.1

CPE

  • cpe:2.3:a:xkbcommon:libxkbcommon:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
xkbcommon xkbcommon
< 0.8.1

CPE

  • cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
canonical ubuntu linux
14.04
16.04
18.04

CPE

  • 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:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-15858
NVD Published Date:
Aug 25, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-15858 Details - Not Deferred