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CVE-2013-2140

Published: 5 June 2013

The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature.

From the Ubuntu security team

A flaw was discovered in the Xen subsystem of the Linux kernel when it provides read-only access to a disk that supports TRIM or SCSI UNMAP to a guest OS. A privileged user in the guest OS could exploit this flaw to destroy data on the disk, even though the guest OS should not be able to write to the disk.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-gke
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-saucy
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-mako
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (3.11~rc3)