Your submission was sent successfully! Close

CVE-2016-6197

Published: 06 August 2016

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

From the Ubuntu security team

It was discovered that the OverlayFS implementation in the Linux kernel did not properly verify dentry state before proceeding with unlink and rename operations. A local attacker could use this to cause a denial of service (system crash).

Priority

Low

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-16.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 11f3710417d026ea2f4fcf362d866342c5274185
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~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 (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1004.5~18.04.1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~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 (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.0.0-13.14~18.04.2)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~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 (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~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 (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1007.9)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-1005.5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.4.0-1077.82)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.6~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist