CVE-2016-9313

Published: 27 November 2016

security/keys/big_key.c in the Linux kernel before 4.8.7 mishandles unsuccessful crypto registration in conjunction with successful key-type registration, which allows local users to cause a denial of service (NULL pointer dereference and panic) or possibly have unspecified other impact via a crafted application that uses the big_key data type.

From the Ubuntu security team

It was discovered that the keyring implementation in the Linux kernel improperly handled crypto registration in conjunction with successful key- type registration. A local attacker could use this to cause a denial of service (system crash).

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
Patches:
Introduced by 13100a72f40f5748a04017e0ab3df4cf27c809ef
Fixed by 7df3e59c3d1df4f87fe874c7956ef7a3d2f4d5fb
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc3)