CVE-2017-7374

Published: 31 March 2017

Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.

From the Ubuntu security team

It was discovered that a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).

Priority

High

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
Patches:
Introduced by b7236e21d55ff9008737621c84dd8ee6c37c7c6d
Fixed by 1b53cf9815bb4744958d41f3795d5d5a1d365e2d
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc4)