CVE-2018-14600
Published: 24 August 2018
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.
Priority
Status
Package | Release | Status |
---|---|---|
libx11 Launchpad, Ubuntu, Debian |
bionic |
Released
(2:1.6.4-3ubuntu0.1)
|
trusty |
Released
(2:1.6.2-1ubuntu2.1)
|
|
upstream |
Released
(1.6.6)
|
|
xenial |
Released
(2:1.6.3-1ubuntu2.1)
|
|
Patches: other: https://gitlab.freedesktop.org/xorg/lib/libx11/commit/dbf72805fd9d7b1846fe9a11b46f3994bfc27fea |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |