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CVE-2010-4238

Published: 22 January 2011

The vbd_create function in Xen 3.1.2, when the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 is used, allows guest OS users to cause a denial of service (host OS panic) via an attempted access to a virtual CD-ROM device through the blkback driver. NOTE: some of these details are obtained from third party information.

From the Ubuntu Security Team

Vladymyr Denysov discovered that Xen virtual CD-ROM devices were not handled correctly. A local attacker in a guest could make crafted blkback requests that would crash the host, leading to a denial of service.

Notes

AuthorNote
smb
Upstream Xen is more lining up to Xen 4 and I suppose that should
handle the CDROM part. So setting not affected.
We are not using the kernel part of the xen package, so not-affected.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy
Released (2.6.24-29.92)
karmic Not vulnerable

lucid Not vulnerable

maverick Not vulnerable

natty Not vulnerable

upstream Not vulnerable

linux-ec2
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Not vulnerable

lucid Not vulnerable

maverick Ignored
(end of life)
natty Does not exist

upstream Needs triage

linux-fsl-imx51
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Not vulnerable

lucid Not vulnerable

maverick Does not exist

natty Does not exist

upstream Needs triage

linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

upstream Needs triage

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

upstream Needs triage

linux-mvl-dove
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Ignored
(end of life)
lucid Not vulnerable

maverick Not vulnerable

natty Does not exist

upstream Needs triage

linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper Not vulnerable
(no xen Dom0 kernel)
hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Does not exist

natty Does not exist

upstream Needs triage

linux-ti-omap4
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Does not exist

karmic Does not exist

lucid Does not exist

maverick Not vulnerable

natty Not vulnerable

upstream Needs triage

xen-3.1
Launchpad, Ubuntu, Debian
dapper Does not exist

hardy Not vulnerable

karmic Does not exist

lucid Does not exist

maverick Does not exist

natty Does not exist

upstream Needed