CVE-2000-0549 describes a denial-of-service vulnerability in Kerberos 4 KDC programs, affecting various Cygnus and MIT Kerberos products. The flaw stems from improper null termination checks for AUTH_MSG_KDC_REQUESTs, allowing remote attackers to crash the KDC with a malformed request. This is a medium-severity vulnerability with a CVSS score of 5.0, indicating it can be exploited remotely with low complexity to achieve a partial denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.0CPE matchmatch criteria | cpe:2.3:a:cygnus:cygnus_network_security:4.0:*:*:*:*:*:*:* | ||
5.0CPE matchmatch criteria | cpe:2.3:a:cygnus:kerbnet:5.0:*:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:mit:kerberos:4.0:*:*:*:*:*:*:* | ||
1.0CPE matchmatch criteria | cpe:2.3:a:mit:kerberos_5:1.0:*:*:*:*:*:*:* | ||
1.1CPE matchmatch criteria | cpe:2.3:a:mit:kerberos_5:1.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
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