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CVE-2017-2647

Published: 31 March 2017

The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.

From the Ubuntu security team

It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. 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 (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-16.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81|c53ee259ad3da891e191dee7af119af340f9c01b
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1006.6~18.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1004.5~18.04.1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-13.14~18.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-13.14~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-1005.5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.18~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist