CVE-2016-6197

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2016-6197
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-08-06T20:59:12
  • Last Modified Date
  • 2019-12-27T16:08:47
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.5.7
cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/torvalds/linux/commit/11f3710417d026ea2f4fcf362d866342c5274185 Issue Tracking Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=11f3710417d026ea2f4fcf362d866342c5274185 Issue Tracking Patch
http://www.openwall.com/lists/oss-security/2016/07/11/8 Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1355650 Issue Tracking
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.ubuntu.com/usn/USN-3070-2
http://www.securityfocus.com/bid/91709
http://www.ubuntu.com/usn/USN-3070-1
http://www.ubuntu.com/usn/USN-3070-3
http://www.ubuntu.com/usn/USN-3070-4
http://www.securitytracker.com/id/1036273
http://rhn.redhat.com/errata/RHSA-2016-1875.html
http://rhn.redhat.com/errata/RHSA-2016-1847.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-6197
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6197
History
Created Old Value New Value Data Type Notes
2022-05-10 16:55:56 Added to TrackCVE
2022-12-02 10:47:29 2016-08-06T20:59Z 2016-08-06T20:59:12 CVE Published Date updated
2022-12-02 10:47:29 2019-12-27T16:08:47 CVE Modified Date updated
2022-12-02 10:47:29 Modified Vulnerability Status updated