Your submission was sent successfully! Close

CVE-2013-1959

Published: 26 April 2013

kernel/user_namespace.c in the Linux kernel before 3.8.9 does not have appropriate capability requirements for the uid_map and gid_map files, which allows local users to gain privileges by opening a file within an unprivileged process and then modifying the file within a privileged process.

From the Ubuntu security team

Andy Lutomirski discovered a privilege escalation in the Linux kernel's user namespaces. A local user could exploit the flaw to gain administrative privileges.

Priority

High

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
Patches:
Introduced by 771b1371686e0a63e938ada28de020b9a0040f55
Fixed by 935d8aabd4331f47a89c3e1daa5779d23cf244ee
Introduced by 771b1371686e0a63e938ada28de020b9a0040f55
Fixed by 6708075f104c3c9b04b23336bb0366ca30c3931b
Introduced by 771b1371686e0a63e938ada28de020b9a0040f55
Fixed by e3211c120a85b792978bcb4be7b2886df18d27f0
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.9~rc8)

Notes

AuthorNote
jj
break commit 771b1371686e0a63e938ada28de020b9a0040f55 is the commit where
user namespaces where enabled, and may not be the actual commit that
causes the specific breakage, but they where not available to cause the
CVE before this commit.

References

Bugs