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Last updated: 7/30/2014 7:18:55 PM

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Vulnerability Summary for CVE-2013-1442

Original release date: 09/30/2013
Last revised: 04/19/2014
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 1.2 (LOW) (AV:L/AC:H/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

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External Source: SECTRACK
Name: 1029090
External Source: MLIST
Name: [oss-security] 20130925 Xen Security Advisory 62 (CVE-2013-1442) - Information leak on AVX and/or LWP capable CPUs
External Source: SUSE
Name: SUSE-SU-2014:0446
External Source: SUSE
Name: openSUSE-SU-2013:1636

Technical Details

Vulnerability Type (View All)
  • Information Leak / Disclosure (CWE-200)