Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2013-1858

Published: 5 April 2013

The clone system-call implementation in the Linux kernel before 3.8.3 does not properly handle a combination of the CLONE_NEWUSER and CLONE_FS flags, which allows local users to gain privileges by calling chroot and leveraging the sharing of the / directory between a parent process and a child process.

Notes

AuthorNote
mdeslaur
reproducer:
http://stealth.openwall.net/xSports/clown-newuser.c
jdstrand
this became privilege esclation when
5eaf563e53294d6696e651466697eb9d491f3946 removed the checks for
CAP_SYS_ADMIN, CAP_SETUID and CAP_SETGID

Priority

High

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy Not vulnerable

lucid Not vulnerable

oneiric Not vulnerable

precise Not vulnerable

quantal Not vulnerable

upstream
Released (3.9~rc3)
Patches:
Introduced by

5eaf563e53294d6696e651466697eb9d491f3946

Fixed by e66eded8309ebf679d3d3c1f5820d1f2ca332c71
linux-armadaxp
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Does not exist

precise Not vulnerable

quantal Not vulnerable

upstream
Released (3.9~rc3)
This package is not directly supported by the Ubuntu Security Team
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.9~rc3)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.9~rc3)
linux-linaro-omap
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
upstream
Released (3.9~rc3)
linux-linaro-shared
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
upstream
Released (3.9~rc3)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
upstream
Released (3.9~rc3)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.9~rc3)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.9~rc3)
linux-lts-quantal
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Does not exist

precise Not vulnerable

quantal Does not exist

upstream
Released (3.9~rc3)
linux-mvl-dove
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
oneiric Does not exist

precise Does not exist

quantal Does not exist

upstream
Released (3.9~rc3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Ignored
(end of life)
oneiric Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
upstream
Released (3.9~rc3)
linux-ti-omap4
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

oneiric Not vulnerable

precise Not vulnerable

quantal Not vulnerable

upstream
Released (3.9~rc3)