CVE-2013-4356 Memory corruption in n/a
Local 64-bit PV guests can cause a denial of service or read/write invalid memory during live migration on hosts with over 5TB RAM.
- 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-2013-4356?
CVE-2013-4356 is a medium-severity memory corruption vulnerability in Xen Xen, published on 9 Oct 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 4.3.x writes hypervisor mappings to certain shadow pagetables when live migration is performed on hosts with more than 5TB of RAM, which allows local 64-bit PV guests to read or write to invalid memory and cause a denial of service (crash).
Weakness: CWE-264
Which versions are affected by CVE-2013-4356?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2013-4356?
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-2013-4356 being exploited?
There is no known exploitation of CVE-2013-4356 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2013-4356, GHSA-c4mh-mf74-4fcf.