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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

4.6^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Information

Published : 2020-09-11 11:15

Updated : 2021-11-04 09:10

NVD link : CVE-2020-14363

Mitre link : CVE-2020-14363

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

fedoraproject

fedora

x.org

libx11

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