ZDI-22-362: Linux Kernel io_uring Use-After-Free Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. 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 credentials in iouring. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-22-362?
The severity of ZDI-22-362 is high due to its potential to allow local privilege escalation.
How do I fix ZDI-22-362?
To fix ZDI-22-362, ensure that you apply the latest security updates and patches to the Linux Kernel.
Who is affected by ZDI-22-362?
ZDI-22-362 affects installations of the Linux Kernel, specifically those using Red Hat Kernel-devel.
What is the exploit vector for ZDI-22-362?
The exploit vector for ZDI-22-362 is local, requiring attackers to execute low-privileged code on the affected system.
What impacts can ZDI-22-362 cause if exploited?
If exploited, ZDI-22-362 can allow an attacker to escalate their privileges, potentially compromising the entire system.