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


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-UBUNTU1304-XEN-365871
  • published30 Sept 2013
  • disclosed30 Sept 2013

Introduced: 30 Sep 2013

CVE-2013-1442  (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.

Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.

CVSS Scores

version 3.1