SB2024111305 - XenServer and Citrix Hypervisor update for Xen
Published: November 13, 2024
Security Bulletin ID
SB2024111305
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper locking (CVE-ID: CVE-2024-45818)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a malicious guest to perform a denial of service attack (DoS) on the target system.
The vulnerability exists due to improper locking in standard VGA implementation. A malicious guest can cause a deadlock and perform a denial of service attack against the entire host.
Remediation
Install update from vendor's website.