CVE-2022-2320: X.Org Server ProcXkbSetDeviceInfo Out-Of-Bounds Access Local Privilege Escalation Vulnerability
A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo 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. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.
Other sources
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 ProcXkbSetDeviceInfo 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2022-2320?
CVE-2022-2320 is a vulnerability that allows local attackers to escalate privileges on affected installations of X.Org Server.
How can the CVE-2022-2320 vulnerability be exploited?
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-2022-2320?
The severity of CVE-2022-2320 is high with a CVSS score of 7.8.
Which software is affected by CVE-2022-2320?
X.Org Server version 21.1.0 is affected by CVE-2022-2320.
How do I fix the CVE-2022-2320 vulnerability?
To fix the CVE-2022-2320 vulnerability, it is recommended to update to a patched version of X.Org Server.