CVE-2016-2853

7.8 HIGH

Published: May 02, 2016 Modified: May 06, 2026

Description

The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/

Source: cve@mitre.org

Exploit Third Party Advisory

http://www.openwall.com/lists/oss-security/2016/02/24/9

Source: cve@mitre.org

Exploit Mailing List Third Party Advisory

http://www.openwall.com/lists/oss-security/2021/10/18/1

Source: cve@mitre.org

Mailing List Third Party Advisory

http://www.securityfocus.com/bid/96839

Source: cve@mitre.org

Broken Link

https://sourceforge.net/p/aufs/mailman/message/34864744/

Source: cve@mitre.org

Third Party Advisory

http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/