CVE-2015-8631: Medium severity kerberos vulnerability

Published Feb 13, 2016
·
Updated

Multiple memory leaks in kadmin/server/serverstubs.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.

Affected Software

30 affected components
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

Event History

Feb 13, 2016
CVE Published
via MITRE·02:00 AM
Data Sourced
via MITRE·02:00 AM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2015-8631?

CVE-2015-8631 has a severity rating that is classified as moderate due to its potential to cause denial of service through memory consumption.

2

How do I fix CVE-2015-8631?

To fix CVE-2015-8631, update to MIT Kerberos 5 version 1.13.4 or later, or 1.14.1 or later, depending on your current version.

3

Who is affected by CVE-2015-8631?

CVE-2015-8631 affects remote authenticated users of MIT Kerberos 5 versions prior to 1.13.4 and 1.14.x versions before 1.14.1.

4

What are the symptoms of CVE-2015-8631 exploitation?

Exploitation of CVE-2015-8631 may result in abnormal memory consumption leading to service disruption or denial of service.

5

Is there a workaround for CVE-2015-8631?

A temporary workaround for CVE-2015-8631 may involve restricting user access to the kadmin service, but applying the available patches is recommended.

Contact

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