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CVE-2016-8655

Published: 05 December 2016

Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.

From the Ubuntu security team

Philip Pettersson discovered a race condition in the af_packet implementation in the Linux kernel. A local unprivileged attacker could use this to cause a denial of service (system crash) or run arbitrary code with administrative privileges.

Priority

High

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
Patches:
Introduced by f6fb8f100b807378fda19e83e5ac6828b638603a
Fixed by 84ac7260236a49c79eede91617700174c2c19b0c
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.9~rc8)