CVE-2016-2854

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 maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

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.securityfocus.com/bid/96838

Source: cve@mitre.org

Third Party Advisory VDB Entry

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

Source: cve@mitre.org

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Mailing List Third Party Advisory

http://www.securityfocus.com/bid/96838

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

8 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.8 / 10.0

EPSS (Exploit Probability)

0.3%

57th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-269

Affected Vendors

linux

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