CVE-2013-4368
EPSS 0.09%
Description
The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.
How to fix CVE-2013-4368
To remediate CVE-2013-4368, upgrade the affected package to a fixed version below.
- Debian/xen—upgrade to 4.4.0-1 or later
Is CVE-2013-4368 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