Information Exposure Affecting xen package, versions <4.2.2-0ubuntu0.13.04.2


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-UBUNTU1304-XEN-366091
  • published17 Oct 2013
  • disclosed17 Oct 2013

Introduced: 17 Oct 2013

CVE-2013-4368  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Ubuntu:13.04 xen to version 4.2.2-0ubuntu0.13.04.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Ubuntu. See How to fix? for Ubuntu:13.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1