Vulnerability Monitor

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CVE-2000-0548

Buffer overflow in Kerberos 4 KDC program allows remote attackers to cause a denial of service via the e_msg variable in the kerb_err_reply function.

Security Impact Summary

CVE-2000-0548 is a security vulnerability that . Impacting 4 products from cygnus_network_security_project, from kerbnet_project, from mit and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2000, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2000-06-09T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cygnus_network_security_project	cygnus_network_security	-	Yes
Application	kerbnet_project	kerbnet	-	Yes
Application	mit	kerberos	< 4.0	Yes
Application	mit	kerberos	4.0	Yes
Application	mit	kerberos	4.0	Yes
Application	mit	kerberos_5	≤ 1.0.7	Yes
Application	mit	kerberos_5	1.1	Yes
Application	mit	kerberos_5	1.1.1	Yes

References

http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html Broken Link ([email protected])
http://ciac.llnl.gov/ciac/bulletins/k-051.shtml Broken Link ([email protected])
http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt Patch, Vendor Advisory ([email protected])
http://www.cert.org/advisories/CA-2000-11.html Third Party Advisory, US Government Resource ([email protected])
http://www.osvdb.org/4875 Broken Link ([email protected])
http://www.redhat.com/support/errata/RHSA-2000-031.html Third Party Advisory ([email protected])
http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://ciac.llnl.gov/ciac/bulletins/k-051.shtml Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cert.org/advisories/CA-2000-11.html Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/4875 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2000-031.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cygnus_network_security_project's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.