CVE-2014-4014

medium

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=23adbe12ef7d3d4195e80800ab36b37bee28cd03

https://bugzilla.redhat.com/show_bug.cgi?id=1107966

http://secunia.com/advisories/59220

https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03

http://www.exploit-db.com/exploits/33824

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8

http://www.openwall.com/lists/oss-security/2014/06/10/4

http://www.securitytracker.com/id/1030394

Details

Source: Mitre, NVD

Published: 2014-06-23

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Severity: Medium