CVE-2012-3516 Privilege escalation in n/a
Local guest administrators can crash the host or gain privileges via crafted grant references in the Xen hypervisor.
- 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-2012-3516?
CVE-2012-3516 is a medium-severity vulnerability in Citrix Xenserver, published on 23 Nov 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
Weakness: CWE-264
Which versions are affected by CVE-2012-3516?
It affects 2 products.
Products include Citrix Xenserver, Xen Xen.
How do I fix CVE-2012-3516?
No fix has been published for CVE-2012-3516 yet. Limit exposure of the affected software until one is available.
Is CVE-2012-3516 being exploited?
There is no known exploitation of CVE-2012-3516 in the wild and no public exploit code.
Other vulnerabilities in Citrix Xenserver
Sources
Also known as GHSA-rhpw-vvc9-379j.