CVE-2024-5661 Potential Denial of Service affecting XenServer and Citrix Hypervisor
A malicious guest VM administrator can cause the host to become slow or unresponsive, impacting availability for Citrix Hypervisor and XenServer users.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-5661?
CVE-2024-5661 is a medium-severity denial of service vulnerability in Citrix Xenserver, published on 13 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive.
Which versions are affected by CVE-2024-5661?
It affects 2 products.
Products include Citrix Hypervisor, Citrix Xenserver.
How do I fix CVE-2024-5661?
No fix has been published for CVE-2024-5661 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-5661 being exploited?
There is no known exploitation of CVE-2024-5661 in the wild and no public exploit code.
Sources
Also known as GHSA-f2p4-q7ff-2gr3.