CVE Vulnerability

CVE-2020-14363

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.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://lists.x.org/archives/xorg-announce/2020-August/003056.html Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 Issue Tracking Third Party Advisory
https://usn.ubuntu.com/4487-2/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/ Mailing List Third Party Advisory
https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh Exploit Third Party Advisory
https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Information

Published : 2020-09-11 06:15

Updated : 2021-11-04 04:10

NVD link : CVE-2020-14363

Mitre link : CVE-2020-14363

Products Affected
No products.
CWE
CWE-190