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CVE-2014-3145

Published: 11 May 2014

The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.

From the Ubuntu Security Team

A remainder calculation error was discovered in the socket filter subsystem of the Linux kernel. A local user could exploit this flaw to cause a denial of service (system crash) via crafted BPF instructions.

Notes

AuthorNote
jdstrand
android kernels (goldfish, grouper, maguro, mako and manta) are not
supported on the Ubuntu Touch 13.10 preview kernels
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels
Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
Patches:
Introduced by

d214c7537bbf2f247991fb65b3420b0b3d712c67

Fixed by 05ab8f2647e4221cbdb3856dd7d32bd5407316b3
linux-2.6
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-armadaxp
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-ec2
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-gke
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-grouper
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-hwe
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-hwe-edge
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-linaro-shared
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-quantal
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-raring
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-saucy
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-trusty
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-utopic
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-vivid
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-wily
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-maguro
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-mako
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-mvl-dove
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-qcm-msm
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-raspi2
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)
linux-ti-omap4
Launchpad, Ubuntu, Debian
upstream
Released (3.15~rc2)