CVE-2022-2320

Description

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.

References

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939

https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc

https://www.zerodayinitiative.com/advisories/ZDI-22-963/

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/

Details