Vulnerability CVE-2022-4283: Information

Description

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

Severity: HIGH (7.8) Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published: Dec. 15, 2022
Modified: May 30, 2023
Error type identifier: CWE-416

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
xorg-serversisyphus1.20.5-alt121.1.11-alt1ALT-PU-2019-1984-1231384Fixed
xorg-serverp101.20.5-alt11.20.14-alt11ALT-PU-2019-1984-1231384Fixed
xorg-serverp91.20.5-alt21.20.8-alt12ALT-PU-2019-2671-1237324Fixed
xorg-serverc10f11.20.5-alt11.20.14-alt9ALT-PU-2019-1984-1231384Fixed
xorg-serverc9f21.20.5-alt21.20.8-alt9ALT-PU-2019-2671-1237324Fixed

References to Advisories, Solutions, and Tools

    1. Configuration 1

      cpe:2.3:a:x.org:xorg-server:1.20.4:*:*:*:*:*:*:*

      Configuration 2

      cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

      cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

      Configuration 3

      cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

      Configuration 4

      cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*