CVE-2016-3120

CVSS V2 Medium 4 CVSS V3 Medium 6.5
Description
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
Overview
  • CVE ID
  • CVE-2016-3120
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-08-01T02:59:12
  • Last Modified Date
  • 2020-01-21T15:47:18
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.13.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.14.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:mit:kerberos_5:1.14.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://web.mit.edu/kerberos/krb5-1.13/
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458 Issue Tracking
https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7
http://web.mit.edu/kerberos/krb5-1.14/
http://lists.opensuse.org/opensuse-updates/2016-09/msg00035.html
http://www.securityfocus.com/bid/92132
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35/
http://www.securitytracker.com/id/1036442
http://rhn.redhat.com/errata/RHSA-2016-2591.html
https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-3120
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3120
History
Created Old Value New Value Data Type Notes
2022-05-10 16:53:00 Added to TrackCVE
2022-12-02 10:39:51 2016-08-01T02:59Z 2016-08-01T02:59:12 CVE Published Date updated
2022-12-02 10:39:52 2020-01-21T15:47:18 CVE Modified Date updated
2022-12-02 10:39:52 Modified Vulnerability Status updated