CVE-2014-1895 Integer overflow in n/a
Local users can crash the host or read hypervisor memory via an off-by-one error in Xen when maximum CPUs are used.
- 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-2014-1895?
CVE-2014-1895 is a medium-severity 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
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
Weakness: CWE-189
Which versions are affected by CVE-2014-1895?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2014-1895?
Apply the vendor's patch.
Is CVE-2014-1895 being exploited?
There is no known exploitation of CVE-2014-1895 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2014-1895, GHSA-h86q-v7x4-qx4x.