CVE-2014-9090

Published: 29 November 2014

The do_double_fault function in arch/x86/kernel/traps.c in the Linux kernel through 3.17.4 does not properly handle faults associated with the Stack Segment (SS) segment register, which allows local users to cause a denial of service (panic) via a modify_ldt system call, as demonstrated by sigreturn_32 in the linux-clock-tests test suite.

From the Ubuntu security team

Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment (SS) register on the x86 architecture. A local attacker could exploit this flaw to cause a denial of service (panic).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 6f442be2fb22be02cafa606f1769fa1e6f894441
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc6)