Your submission was sent successfully! Close

CVE-2015-7513

Published: 31 December 2015

arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.

From the Ubuntu security team

It was discovered that the KVM implementation in the Linux kernel did not properly restore the values of the Programmable Interrupt Timer (PIT). A user-assisted attacker in a KVM guest could cause a denial of service in the host (system crash).

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 0185604c2d82c560dab2f2933a18f797e74ab5a8
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc7)