CVE Vulnerability

CVE-2018-15857

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

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html Mailing List Patch
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb Patch Third Party Advisory
https://usn.ubuntu.com/3786-1/ Third Party Advisory
https://security.gentoo.org/glsa/201810-05 Third Party Advisory
https://usn.ubuntu.com/3786-2/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2079
Configurations

Configuration 1

cpe:2.3:a:xkbcommon:xkbcommon:*:*:*:*:*:*:*:*
cpe:2.3:a:xkbcommon:libxkbcommon:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Information

Published : 2018-08-25 09:29

Updated : 2019-08-06 05:15

NVD link : CVE-2018-15857

Mitre link : CVE-2018-15857

Products Affected
No products.
CWE
CWE-416