4.6
CVSSv2

CVE-2018-15857

Published: 25/08/2018 Updated: 27/03/2019
CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 443
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon prior to 0.8.1 could be used by local malicious users to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file.

Vulnerability Trend

Affected Products

Vendor Product Versions
CanonicalUbuntu Linux14.04, 16.04, 18.04

Vendor Advisories

An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-buildc in xkbcommon before 081 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file ...
Several security issues were fixed in libxkbcommon ...
Several security issues were fixed in libxkbcommon ...