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CVE-2020-14363

Published: Sep 11, 2020

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

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.

Vendor	Product	Versions
The X11 Project	libX11	affected `1.6.12`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt

x_refsource_MISC

https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh

x_refsource_MISC

https://lists.x.org/archives/xorg-announce/2020-August/003056.html

x_refsource_MISC

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363

x_refsource_CONFIRM

vendor-advisory

x_refsource_UBUNTU

FEDORA-2020-cf0afbd27e

vendor-advisory

x_refsource_FEDORA

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