CVE-2015-3339

Published: 21 April 2015

Race condition in the prepare_binprm function in fs/exec.c in the Linux kernel before 3.19.6 allows local users to gain privileges by executing a setuid program at a time instant when a chown to root is in progress, and the ownership is changed but the setuid bit is not yet stripped.

From the Ubuntu security team

A race condition between chown() and execve() was discovered in the Linux kernel. A local attacker could exploit this race by using chown on a setuid-user-binary to gain administrative privileges.

Priority

High

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
Patches:
Upstream: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8b01fc86b9f425899f8a3a8fc1c47d73c2c20543
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)