CVE-2014-1895
EPSS 0.10%
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.
How to fix CVE-2014-1895
To remediate CVE-2014-1895, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.4.0-1 or later
Is CVE-2014-1895 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.4.0-1