CVE-2012-3495

Published Nov 23, 2012

Last updated 7 years ago

Overview

Description
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
Source
secalert@redhat.com
NVD status
Modified

Risk scores

CVSS 2.0

Type
Primary
Base score
6.1
Impact score
8.5
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:P/I:P/A:C

Weaknesses

nvd@nist.gov
CWE-20

Social media

Hype score
Not currently trending

Configurations