CVE-2020-14345

Published: Sep 15, 2020Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected (5)

Products: X.org: X Server · Canonical: Ubuntu Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
X.org X Server	Before 1.20.9

Configuration B

4 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 16.04
Canonical Ubuntu Linux	Version 18.04
Canonical Ubuntu Linux	Version 20.04

Related CWEs

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (14)

http://www.openwall.com/lists/oss-security/2021/01/15/1

Source: secalert@redhat.com

Mailing ListThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1862241

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://lists.x.org/archives/xorg-announce/2020-August/003058.html

Source: secalert@redhat.com

Vendor Advisory

https://security.gentoo.org/glsa/202012-01

Source: secalert@redhat.com

Third Party Advisory

https://usn.ubuntu.com/4488-2/

Source: secalert@redhat.com

Third Party Advisory

https://usn.ubuntu.com/4490-1/

Source: secalert@redhat.com

Third Party Advisory

https://www.zerodayinitiative.com/advisories/ZDI-20-1416/

Source: secalert@redhat.com

Third Party AdvisoryVDB Entry

http://www.openwall.com/lists/oss-security/2021/01/15/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1862241

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingThird Party Advisory

https://lists.x.org/archives/xorg-announce/2020-August/003058.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://security.gentoo.org/glsa/202012-01

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://usn.ubuntu.com/4488-2/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://usn.ubuntu.com/4490-1/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.zerodayinitiative.com/advisories/ZDI-20-1416/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

Timeline

No history available yet.