CVE-2011-2519 Null dereference in n/a
Guest users can crash the hypervisor via invalid pointer dereference when hardware assisted paging is disabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-2519?
CVE-2011-2519 is a medium-severity vulnerability in Redhat Enterprise Linux Desktop, published on 27 Dec 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
Weakness: CWE-476
Which versions are affected by CVE-2011-2519?
It affects 4 products.
Products include Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Xen Xen.
How do I fix CVE-2011-2519?
Apply the vendor's patch.
Is CVE-2011-2519 being exploited?
There is no known exploitation of CVE-2011-2519 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux Desktop
Sources
Also known as GHSA-7vg8-g6px-4578.