#VU63308 Race condition


Published: 2022-05-17

Vulnerability identifier: #VU63308

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-23039

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a race condition in the gntalloc ring buffer. A malicious backend can exploit the race condition and read or write data or perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Xen: All versions


CPE

External links
http://xenbits.xenproject.org/xsa/advisory-396.txt


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


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