CVE-2014-7156
EPSS 0.80%
Description
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
How to fix CVE-2014-7156
To remediate CVE-2014-7156, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.4.1-3 or later
Is CVE-2014-7156 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.4.1-3