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CVE-2001-1155

CRITICAL CVSS: 9.8 Published: 2001-08-23 Modified: 2026-06-16

Description

TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spoofing.

Affected Platforms

Freebsd Freebsd

Weakness Type

CWE-863

References