CVE-2018-15856
Published: 25 August 2018
An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files.
Notes
Author | Note |
---|---|
leosilva | Trusty need to be researched since code is quite different and /compose is not present. |
Priority
Status
Package | Release | Status |
---|---|---|
libxkbcommon Launchpad, Ubuntu, Debian |
upstream |
Released
(0.8.2-1)
|
xenial |
Released
(0.5.0-1ubuntu2.1)
|
|
bionic |
Released
(0.8.0-1ubuntu0.1)
|
|
cosmic |
Not vulnerable
(0.8.2-1)
|
|
trusty |
Released
(0.4.1-0ubuntu1.1)
|
|
Patches: vendor: https://github.com/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
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 |