#VU88115 Heap-based buffer overflow in X.org Server and Xwayland
Vulnerability identifier: #VU88115
Vulnerability risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-122
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
X.org Server
Server applications /
Other server solutions
Xwayland
Client/Desktop applications /
Multimedia software
Vendor: X.org
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a boundary error within the ProcXIGetSelectedEvents() function. A local user can trigger a heap-based buffer overflow and read system memory.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
X.org Server: 21.0.99.1 - 21.1.11
Xwayland: 23.0.99.901 - 23.2.4
External links
http://lists.x.org/archives/xorg-announce/2024-April/003497.html
http://gitlab.freedesktop.org/xorg/xserver/-/commit/96798fc1967491c80a4d0
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
