CVE-2016-6197

5.5 MEDIUM
Published: August 06, 2016 Modified: May 06, 2026
View on NVD

Description

fs/overlayfs/dir.c in the OverlayFS filesystem implementation in the Linux kernel before 4.6 does not properly verify the upper dentry before proceeding with unlink and rename system-call processing, which allows local users to cause a denial of service (system crash) via a rename system call that specifies a self-hardlink.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185
Source: cve@mitre.org
Issue Tracking Patch
http://rhn.redhat.com/errata/RHSA-2016-1847.html
Source: cve@mitre.org
http://rhn.redhat.com/errata/RHSA-2016-1875.html
Source: cve@mitre.org
http://www.openwall.com/lists/oss-security/2016/07/11/8
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
Source: cve@mitre.org
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Source: cve@mitre.org
Vendor Advisory
http://www.securityfocus.com/bid/91709
Source: cve@mitre.org
http://www.securitytracker.com/id/1036273
Source: cve@mitre.org
http://www.ubuntu.com/usn/USN-3070-1
Source: cve@mitre.org
http://www.ubuntu.com/usn/USN-3070-2
Source: cve@mitre.org
http://www.ubuntu.com/usn/USN-3070-3
Source: cve@mitre.org
http://www.ubuntu.com/usn/USN-3070-4
Source: cve@mitre.org
https://bugzilla.redhat.com/show_bug.cgi?id=1355650
Source: cve@mitre.org
Issue Tracking
https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185
Source: cve@mitre.org
Issue Tracking Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch
http://rhn.redhat.com/errata/RHSA-2016-1847.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://rhn.redhat.com/errata/RHSA-2016-1875.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2016/07/11/8
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.securityfocus.com/bid/91709
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1036273
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3070-1
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3070-2
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3070-3
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3070-4
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=1355650
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking
https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch

28 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.5 / 10.0
EPSS (Exploit Probability)
0.1%
17th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

linux oracle

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