CVE-2014-5354 Null dereference in n/a

Low 3.5 Published Updated

Authenticated users can crash the Kerberos KDC by creating keyless principals when LDAP is enabled, causing a denial of service.

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-2014-5354?

CVE-2014-5354 is a low-severity vulnerability in Mit Kerberos 5, published on 16 Dec 2014. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, when the KDC uses LDAP, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by creating a database entry for a keyless principal, as demonstrated by a kadmin "add_principal -nokey" or "purgekeys -all" command.

Which versions are affected by CVE-2014-5354?

It affects 2 products.

Products include Mit Kerberos, Mit Kerberos 5.

How do I fix CVE-2014-5354?

Upgrade to a fixed version.

Is CVE-2014-5354 being exploited?

There is no known exploitation of CVE-2014-5354 in the wild and no public exploit code.

All Mit Kerberos 5 vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-5354, GHSA-m892-8m95-539h, UBUNTU-CVE-2014-5354.

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