CVE-2012-3495

Published: 23 November 2012

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.

Priority

Medium

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
Upstream
Released (4.1.3-2)
Binaries built from this source package are in Universe and so are supported by the community.
xen-3.1
Launchpad, Ubuntu, Debian
Upstream Needs triage

Binaries built from this source package are in Universe and so are supported by the community.
xen-3.2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Binaries built from this source package are in Universe and so are supported by the community.
xen-3.3
Launchpad, Ubuntu, Debian
Upstream Needs triage

Binaries built from this source package are in Universe and so are supported by the community.