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CVE-2014-1438

Published: 18 January 2014

The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

From the Ubuntu security team

halfdog reported an error in the AMD K7 and K8 platform support in the Linux kernel. An unprivileged local user could exploit this flaw on AMD based systems to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 26bef1318adc1b3a530ecc807ef99346db2aa8b0
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.13)