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CVE-2015-2150

Published: 12 March 2015

Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

From the Ubuntu security team

Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by af6fc858a35b90e89ea7a7ee58e66628c55c776b
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc4)