QwikSec

Security Database

CVE

CWE

Training

CVE-2013-1858

Published: Apr 5, 2013

Modified: Aug 6, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e66eded8309ebf679d3d3c1f5820d1f2ca332c71

x_refsource_CONFIRM

[oss-security] 20130314 Re: CLONE_NEWUSER|CLONE_FS root exploit

mailing-list

x_refsource_MLIST

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.3

x_refsource_CONFIRM

http://stealth.openwall.net/xSports/clown-newuser.c

x_refsource_MISC

https://github.com/torvalds/linux/commit/e66eded8309ebf679d3d3c1f5820d1f2ca332c71

x_refsource_CONFIRM

https://bugzilla.redhat.com/show_bug.cgi?id=921448

x_refsource_CONFIRM

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.