CVE-2022-2319: X.Org Server ProcXkbSetGeometry Out-Of-Bounds Access Local Privilege Escalation Vulnerability
First published: Thu Sep 01 2022(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of X.Org Server. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of ProcXkbSetGeometry requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| X.Org Server | ||
| X.org Xorg-server | =21.1.0 |
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Reference Links
- https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938/diffs?commit_id=6907b6ea2b4ce949cb07271f5b678d5966d9df42
- https://www.zerodayinitiative.com/advisories/ZDI-22-964/
- https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
- https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
- https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
- https://security.gentoo.org/glsa/202210-30
- https://security.netapp.com/advisory/ntap-20221104-0003/
Frequently Asked Questions
What is CVE-2022-2319?
CVE-2022-2319 is a vulnerability that allows local attackers to escalate privileges on affected installations of X.Org Server.
How can an attacker exploit CVE-2022-2319?
An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
What is the severity of CVE-2022-2319?
CVE-2022-2319 has a severity rating of 7.8, which is considered high.
What is the affected software?
The affected software is X.Org Server, specifically version 21.1.0.
How can I fix CVE-2022-2319?
To fix CVE-2022-2319, users should update to the latest version of X.Org Server and follow any security advisories provided by the vendor.
- collector/zdi-advisory
- alias/ZDI-22-964
- alias/ZDI-CAN-16062
- alias/CVE-2022-2319
- collector/nvd-index
- agent/author
- agent/references
- agent/severity
- agent/title
- agent/weakness
- agent/description
- agent/type
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/remedy
- agent/tags
- vendor/x.org
- canonical/x.org server
- canonical/x.org xorg-server
- version/x.org xorg-server/21.1.0