SB2012120303 - Input validation error in Xen

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2012120303

SB2012120303 - Input validation error in Xen

Published: December 3, 2012 Updated: August 4, 2020

Security Bulletin ID SB2012120303
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Input validation error (CVE-ID: CVE-2012-2934)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.


Remediation

Install update from vendor's website.

References