Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2000-0536

xinetd 2.1.8.x does not properly restrict connections if hostnames are used for access control and the connecting host does not have a reverse DNS entry.

Security Impact Summary

CVE-2000-0536 is a security vulnerability that . Impacting 1 product from xinetd 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

2000-06-04T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	xinetd	xinetd	2.1.87	Yes
Application	xinetd	xinetd	2.1.88	Yes
Application	xinetd	xinetd	2.1.88_pre1	Yes
Application	xinetd	xinetd	2.1.88_pre2	Yes
Application	xinetd	xinetd	2.1.89_pre1	Yes
Application	xinetd	xinetd	2.1.89_pre2	Yes
Application	xinetd	xinetd	2.1.89_pre3	Yes
Application	xinetd	xinetd	2.1.89_pre4	Yes
Application	xinetd	xinetd	2.1.89_pre5	Yes

References

http://www.debian.org/security/2000/20000619 ([email protected])
http://www.securityfocus.com/bid/1381 Exploit, Patch, Vendor Advisory ([email protected])
http://www.synack.net/xinetd/ Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/4986 ([email protected])
http://www.debian.org/security/2000/20000619 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/1381 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.synack.net/xinetd/ Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/4986 (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 xinetd'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.