CVE-2015-8631 Denial of service in n/a
Remote authenticated users can cause a denial of service via memory consumption in the Kerberos admin server by sending requests with NULL principal names.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-8631?
CVE-2015-8631 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 13 Feb 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-772
Which versions are affected by CVE-2015-8631?
It affects 11 products.
Products include Debian Debian Linux, Mit Kerberos 5, Opensuse Leap, Opensuse Opensuse, Oracle Linux, Redhat Enterprise Linux Desktop and 5 more.
How do I fix CVE-2015-8631?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-8631 being exploited?
There is no known exploitation of CVE-2015-8631 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2015-8631, DEBIAN-CVE-2015-8631, GHSA-7f2w-w6q2-vgj3, UBUNTU-CVE-2015-8631.