Type confusion in Xen - CVE-2024-31142

 

Type confusion in Xen - CVE-2024-31142

Published: April 10, 2024


Vulnerability identifier: #VU88372
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-31142
CWE-ID: CWE-843
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Xen Project
Affected software:
Xen

Detailed vulnerability description

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to a logical error caused by a branch type confusion when implementing fixes for the following vulnerabilities:

#VU65219 (CVE-2022-23816)
#VU65204 (CVE-2022-23825)
#VU65205 (CVE-2022-29900)
#VU79263 (CVE-2023-20569)

A malicious guest can gain access to sensitive information and escalate privileges on the system.


How to mitigate CVE-2024-31142

Install updates from vendor's website.

Sources