CVE-2017-6346

Published: 01 March 2017

Race condition in net/packet/af_packet.c in the Linux kernel before 4.9.13 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that makes PACKET_FANOUT setsockopt system calls.

From the Ubuntu security team

It was discovered that a race condition existed in the AF_PACKET handling code in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.0

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
Patches:
Introduced by dc99f600698dcac69b8f56dda9a8a00d645c5ffc
Fixed by d199fab63c11998a602205f7ee7ff7c05c97164b
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.10)

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

References