CVE-2013-1417 Denial of service in n/a
Remote authenticated users can crash the Kerberos KDC daemon via a crafted TGS-REQ request when single-component realm names are used.
- 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-2013-1417?
CVE-2013-1417 is a low-severity denial of service vulnerability in Mit Kerberos 5, published on 20 Nov 2013. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.
Weakness: CWE-20
Which versions are affected by CVE-2013-1417?
It affects 1 product.
Products include Mit Kerberos 5.
How do I fix CVE-2013-1417?
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-2013-1417 being exploited?
There is no known exploitation of CVE-2013-1417 in the wild and no public exploit code.
Other vulnerabilities in Mit Kerberos 5
Sources
Also known as DEBIAN-CVE-2013-1417, GHSA-wfgh-cf33-x6c3.