medium
6.5
CWE
772
Advisory Published
Updated

CVE-2015-8631

First published: Sat Feb 13 2016(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Kerberos<1.13.4
Kerberos>=1.14<1.14.1
SUSE Linux=42.1
openSUSE=13.2
Debian Linux=7.0
Debian Linux=8.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server EUS=6.7
Red Hat Enterprise Linux Server EUS=7.2
Red Hat Enterprise Linux Server EUS=7.3
Red Hat Enterprise Linux Server EUS=7.4
Red Hat Enterprise Linux Server EUS=7.5
Red Hat Enterprise Linux Server EUS=7.6
Red Hat Enterprise Linux Server EUS=7.7
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Oracle Linux=6
Oracle Linux=7

Remedy

https://github.com/krb5/krb5/commit/83ed75feba32e46f736fcce0d96a0445f29b96c2

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Reference Links

Frequently Asked Questions

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

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