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CVE-2015-8967

Published: 08 December 2016

arch/arm64/kernel/sys.c in the Linux kernel before 4.0 allows local users to bypass the "strict page permissions" protection mechanism and modify the system-call table, and consequently gain privileges, by leveraging write access.

From the Ubuntu security team

It was discovered that the system call table for ARM 64-bit processors in the Linux kernel was not write-protected. An attacker could use this in conjunction with another kernel vulnerability to execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by c623b33b4e9599c6ac5076f7db7369eb9869aa04
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.0~rc1)