CVE-2014-1896 Memory corruption in n/a

Medium 4.9 Published 1 Apr 2014 Updated 6 Aug 2024

Local guests can cause denial of service or gain privileges via crafted xenstore ring indexes in the libvchan component of Xen.

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-2014-1896?

CVE-2014-1896 is a medium-severity memory corruption vulnerability in Xen Xen, published on 1 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."

Weakness: CWE-20

Which versions are affected by CVE-2014-1896?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2014-1896?

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-2014-1896 being exploited?

There is no known exploitation of CVE-2014-1896 in the wild and no public exploit code.

All Xen Xen vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-1896, GHSA-8xr2-qvfg-j8q4.