CVE-2015-8554 Memory corruption in n/a
Local guest administrators can gain privileges via buffer overflow in Xen when using specific device models with passed-through PCI devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-8554?
CVE-2015-8554 is a high-severity memory corruption vulnerability in Xen Xen, published on 14 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."
Weakness: CWE-119
Which versions are affected by CVE-2015-8554?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2015-8554?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2015-8554 being exploited?
There is no known exploitation of CVE-2015-8554 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2015-8554, GHSA-jj32-x32m-v858, UBUNTU-CVE-2015-8554.