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CVE-2016-3961

Published: 15 April 2016

Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.

From the Ubuntu security team

Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress hugetlbfs support in X86 paravirtualized guests. An attacker in the guest OS could cause a denial of service (guest system crash).

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 103f6112f253017d7062cd74d17f4a514ed4485c
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc5)