PT-2013-3436 · Linux · Linux Kernel

Prasad Pandit · Published 2013-04-05 · Updated 2023-02-13 · CVE-2013-1858

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.8.3

Description The issue allows local users to gain privileges by exploiting a flaw in the clone system-call implementation. This is achieved by calling chroot and leveraging the sharing of the / directory between a parent process and a child process when a combination of the CLONE NEWUSER and CLONE FS flags is used.

Recommendations For Linux kernel versions prior to 3.8.3, update to version 3.8.3 or later to resolve the issue.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2013-1858

Affected Products

Linux Kernel

References · 8

• 🔥 http://stealth.openwall.net/xSports/clown-newuser.c · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2013-1858 · Security Note
• https://github.com/torvalds/linux/commit/e66eded8309ebf679d3d3c1f5820d1f2ca332c71 · Note
• http://kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.3 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e66eded8309ebf679d3d3c1f5820d1f2ca332c71 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=921448 · Note
• https://t.me/ckure/2806 · Telegram Post
• http://openwall.com/lists/oss-security/2013/03/14/6 · Note