CVE-2015-3291

Published: 23 July 2015

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.

From the Ubuntu security team

Andy Lutomirski discovered a flaw that allows user to cause the Linux kernel to ignore some NMIs (non-maskable interrupts). A local unprivileged user could exploit this flaw to potentially cause the system to miss important NMIs resulting in unspecified effects.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
Patches:
Introduced by 3f3c8b8c4b2a34776c3470142a7c8baafcda6eb0
Fixed by 810bc075f78ff2c221536eb3008eac6a492dba2d
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.2~rc3)