CVE-2013-1858

kernel: CLONE_NEWUSER | CLONE_FS chroot exploit

Published Apr 5, 2013 CVSS 2.0 · 7.2 High EPSS 1.7% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2013-1861 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 3:20 PM
Reserved
Feb 19, 2013, 12:00 AM
Status
Modified
Published
Apr 5, 2013, 9:55 PM
Modified
Jun 16, 2026, 11:52 PM
Severity
Important
Public date
Mar 13, 2013, 12:00 AM