ZDI-22-963: X.Org Server ProcXkbSetDeviceInfo Out-Of-Bounds Access Local Privilege Escalation Vulnerability
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
Event History
Frequently Asked Questions
What is the severity of ZDI-22-963?
The severity of ZDI-22-963 is categorized as a privilege escalation vulnerability.
How do I fix ZDI-22-963?
To fix ZDI-22-963, users should update the X.Org Server to the latest version that includes the security patch.
Who is affected by ZDI-22-963?
ZDI-22-963 affects local installations of X.Org Server that allow attackers to escalate privileges.
What type of vulnerability is ZDI-22-963?
ZDI-22-963 is a local privilege escalation vulnerability that allows an attacker to gain elevated permissions.
What must an attacker do to exploit ZDI-22-963?
An attacker must first execute low-privileged code on the target system to exploit ZDI-22-963.