CVE-2018-15863
Publication date 25 August 2018
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
Unchecked NULL pointer usage in ResolveStateAndPredicate in xkbcomp/compat.c 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 with a no-op modmask expression.
Status
Package | Ubuntu Release | Status |
---|---|---|
libxkbcommon | ||
18.04 LTS bionic |
Fixed 0.8.0-1ubuntu0.1
|
|
16.04 LTS xenial |
Fixed 0.5.0-1ubuntu2.1
|
|
14.04 LTS trusty |
Fixed 0.4.1-0ubuntu1.1
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 · Medium |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3786-2
- libxkbcommon vulnerabilities
- 6 November 2018
- USN-3786-1
- libxkbcommon vulnerabilities
- 8 October 2018