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CVE-2016-3841

Published: 06 August 2016

The IPv6 stack in the Linux kernel before 4.3.3 mishandles options data, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call.

From the Ubuntu security team

Dmitry Vyukov discovered that the IPv6 implementation in the Linux kernel did not properly handle options data, including a use-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

High

CVSS 3 base score: 7.3

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 45f6fad84cc305103b28d73482b344d7f5b76f39
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.4~rc4)

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