CVE-2020-14363
Published: 25 August 2020
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
Priority
Status
Package | Release | Status |
---|---|---|
libx11 Launchpad, Ubuntu, Debian |
bionic |
Released
(2:1.6.4-3ubuntu0.3)
|
focal |
Released
(2:1.6.9-2ubuntu1.1)
|
|
trusty |
Released
(2:1.6.2-1ubuntu2.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Needs triage
|
|
xenial |
Released
(2:1.6.3-1ubuntu2.2)
|
|
Patches: upstream: https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/acdaaadcb3d85c61fd43669fc5dddf0f8c3f911d |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |