SB2024121808 - Remote denial of service in Xen
Published: December 18, 2024
Security Bulletin ID
SB2024121808
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) NULL pointer dereference (CVE-ID: CVE-2024-53240)
CWE-ID: CWE-476 - NULL Pointer Dereference
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 remote backend to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the guest xen-netfront driver. A a malicious network backend can crash the guest OS.
Remediation
Install update from vendor's website.