What is the severity of CVE-2000-0549?

CVE-2000-0549 is classified as a denial of service vulnerability that can disrupt the availability of the Kerberos 4 KDC program.

How do I fix CVE-2000-0549?

To fix CVE-2000-0549, ensure that you apply the latest patches provided by your software vendor for affected versions of Kerberos.

What systems are affected by CVE-2000-0549?

CVE-2000-0549 affects versions 4.0 and 5.0 of Cygnus Network Security and MIT Kerberos 5 versions 1.0, 1.1, and 1.1.1.

Is CVE-2000-0549 exploitable remotely?

Yes, CVE-2000-0549 can be exploited remotely by attackers sending malformed AUTH_MSG_KDC_REQUEST requests.

What type of attack does CVE-2000-0549 facilitate?

CVE-2000-0549 facilitates denial of service attacks that can cause the Kerberos KDC to crash or become unresponsive.

Vulnerability/
CVE-2000-0549

medium

CWE

NVD-CWE-Other

9/6/2000

13/10/2000

8/8/2024

CVE-2000-0549

First published: Fri Jun 09 2000(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Cygnus Network Security	=4.0
Kerbnet	=5.0
Kerberos	=4.0
Kerberos	=1.0
Kerberos	=1.1
Kerberos	=1.1.1

Remedy

http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html

Remedy

http://www.cert.org/advisories/CA-2000-11.html

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2000-0549?
CVE-2000-0549 is classified as a denial of service vulnerability that can disrupt the availability of the Kerberos 4 KDC program.
How do I fix CVE-2000-0549?
To fix CVE-2000-0549, ensure that you apply the latest patches provided by your software vendor for affected versions of Kerberos.
What systems are affected by CVE-2000-0549?
CVE-2000-0549 affects versions 4.0 and 5.0 of Cygnus Network Security and MIT Kerberos 5 versions 1.0, 1.1, and 1.1.1.
Is CVE-2000-0549 exploitable remotely?
Yes, CVE-2000-0549 can be exploited remotely by attackers sending malformed AUTH_MSG_KDC_REQUEST requests.
What type of attack does CVE-2000-0549 facilitate?
CVE-2000-0549 facilitates denial of service attacks that can cause the Kerberos KDC to crash or become unresponsive.

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agent/software-canonical-lookup-request
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vendor/cygnus
vendor/kerbnet
vendor/cygnus network security
vendor/mit
vendor/kerberos
vendor/kerberos 5
canonical/cygnus network security
version/cygnus network security/4.0
canonical/kerbnet
version/kerbnet/5.0
canonical/kerberos
version/kerberos/4.0
version/kerberos/1.0
version/kerberos/1.1
version/kerberos/1.1.1

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