CVE-2015-8631

Name: CVE-2015-8631
Creator: NVD / NIST
Published: 2016-02-13T02:59:02.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 4.64%

Last modified Jun 17, 2026

CVE-2015-8631 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Multiple memory leaks in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (memory consumption) via a request specifying a NULL principal name.. EPSS estimates a 4.64% chance of exploitation in the next 30 days.

Description

Multiple memory leaks in kadmin/server/server_stubs.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (memory consumption) via a request specifying a NULL principal name.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

4.64%

90.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions
Mit	Kerberos 5	< 1.13.4
Mit	Kerberos 5	>= 1.14, < 1.14.1
Opensuse	Leap	42.1
Opensuse	Opensuse	13.2
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Eus	6.7
Redhat	Enterprise Linux Eus	7.2
Redhat	Enterprise Linux Eus	7.3
Redhat	Enterprise Linux Eus	7.4
Redhat	Enterprise Linux Eus	7.5
Redhat	Enterprise Linux Eus	7.6
Redhat	Enterprise Linux Eus	7.7
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.2
Redhat	Enterprise Linux Server Aus	7.3
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Aus	7.7
Redhat	Enterprise Linux Server Tus	7.2
Redhat	Enterprise Linux Server Tus	7.3
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Server Tus	7.7
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0
Oracle	Linux	6
Oracle	Linux	7

References

http://krbdev.mit.edu/rt/Ticket/Display.html?id=8343Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0493.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0532.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3466Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
http://www.securitytracker.com/id/1034916Third Party Advisory, VDB Entry
https://github.com/krb5/krb5/commit/83ed75feba32e46f736fcce0d96a0445f29b96c2Patch, Third Party Advisory
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8343Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00059.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00110.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0493.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0532.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3466Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlThird Party Advisory
http://www.securitytracker.com/id/1034916Third Party Advisory, VDB Entry
https://github.com/krb5/krb5/commit/83ed75feba32e46f736fcce0d96a0445f29b96c2Patch, Third Party Advisory

Timeline

Published: Feb 13, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8631?

How severe is CVE-2015-8631?

CVE-2015-8631 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 4.64% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8631?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8631?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST