ZDI-CAN-11428: X.Org Server XkbSetNames Out-Of-Bounds Access 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 XkbSetNames 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 data structure. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of root.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-11428?
The severity of ZDI-CAN-11428 is classified as high due to its potential for local privilege escalation.
How do I fix ZDI-CAN-11428?
To fix ZDI-CAN-11428, update the X.Org Server to the latest version provided by your distribution.
What types of systems are affected by ZDI-CAN-11428?
ZDI-CAN-11428 affects installations of X.Org Server that allow execution of low-privileged code.
Who can exploit ZDI-CAN-11428?
Local attackers with the ability to execute low-privileged code on the target system can exploit ZDI-CAN-11428.
What kind of impact can ZDI-CAN-11428 have on a system?
ZDI-CAN-11428 can allow attackers to escalate their privileges, potentially compromising the entire system.