#VU70589 Release of invalid pointer or reference in Xen - CVE-2022-42309 

 

#VU70589 Release of invalid pointer or reference in Xen - CVE-2022-42309

Published: January 2, 2023


Vulnerability identifier: #VU70589
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Green
CVE-ID: CVE-2022-42309
CWE-ID: CWE-763
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Xen
Software vendor:
Xen Project

Description

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of a wrong pointer during the node creation in Xenstore. A malicious guest can cause xenstored to crash.


Remediation

Install updates from vendor's website.

External links