CVE-2023-6816: A flaw was found in X.Org server | LiveThreat CVE Feed

Description

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.1% · higher than 82% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

DL

Debian Linux · Debian

10.0 · source: NVD

EL

Enterprise Linux Desktop · Redhat

7.0 · source: NVD

EL

Enterprise Linux Server · Redhat

7.0 · source: NVD

EL

Enterprise Linux Workstation · Redhat

7.0 · source: NVD

FE

Fedora · Fedoraproject

39 · source: NVD

XS

X Server · X.org

before 21.1.11 · source: NVD

XW

Xwayland · X.org

before 23.2.4 · source: NVD