CVE-2000-0549 Denial of service in n/a
Remote attackers can cause a denial of service in Kerberos 4 KDC by sending malformed requests that lack null termination.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2000-0549?
CVE-2000-0549 is a medium-severity denial of service vulnerability in Mit Kerberos 5, published on 13 Oct 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Kerberos 4 KDC program does not properly check for null termination of AUTH_MSG_KDC_REQUEST requests, which allows remote attackers to cause a denial of service via a malformed request.
Which versions are affected by CVE-2000-0549?
It affects 4 products.
Products include Cygnus Cygnus Network Security, Cygnus Kerbnet, Mit Kerberos, Mit Kerberos 5.
How do I fix CVE-2000-0549?
No fix has been published for CVE-2000-0549 yet. Limit exposure of the affected software until one is available.
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-2000-0549 being exploited?
There is no known exploitation of CVE-2000-0549 in the wild and no public exploit code.
Other vulnerabilities in Mit Kerberos 5
Sources
Also known as GHSA-5pwv-v67v-mf36.