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Unscored Public exploit CVE-2014-4014 EUVD-2014-3946GHSA-73cf-9h72-w34c

The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, wh…

Published Jun 23, 2014 · Updated Aug 6, 2024 · Assigned by mitre

Package: linux Package: linux Ecosystem: Debian Ecosystem: Ubuntu

Description

The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 3.14.7-1 —
Debian 13 linux 3.14.7-1 —
Debian 12 linux 3.14.7-1 —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 14.04 LTS linux 3.13.0-35.62 USN-2337-1

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 7 dtrace-modules-3.8.13-55.el6uek 0.4.3-4.el6 ELSA-2014-3096
Oracle Linux 7 dtrace-modules-3.8.13-55.el7uek 0.4.3-4.el7 ELSA-2014-3096
Oracle Linux 7 kernel-uek +5 3.8.13-55.el7uek ELSA-2014-3096

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

References