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CVE-2013-4270

Published: 08 November 2013

The net_ctl_permissions function in net/sysctl_net.c in the Linux kernel before 3.11.5 does not properly determine uid and gid values, which allows local users to bypass intended /proc/sys/net restrictions via a crafted application.

From the Ubuntu security team

Miroslav Vadkerti discovered a flaw in how the permissions for network sysctls are handled in the Linux kernel. An unprivileged local user could exploit this flaw to have privileged access to files in /proc/sys/net/.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
Patches:
Introduced by cff109768b2d9c03095848f4cd4b0754117262aa
Fixed by 2433c8f094a008895e66f25bd1773cdb01c91d01
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.12~rc4)