Ubuntu 7.04 : tcp-wrappers vulnerability (USN-507-1)

Medium Nessus Plugin ID 28111


The remote Ubuntu host is missing one or more security-related patches.


It was discovered that the TCP wrapper library was incorrectly allowing connections to services that did not specify server-side connection details. Remote attackers could connect to services that had been configured to block such connections. This only affected Ubuntu Feisty.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected libwrap0, libwrap0-dev and / or tcpd packages.

Plugin Details

Severity: Medium

ID: 28111

File Name: ubuntu_USN-507-1.nasl

Version: $Revision: 1.11 $

Type: local

Agent: unix

Published: 2007/11/10

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libwrap0, p-cpe:/a:canonical:ubuntu_linux:libwrap0-dev, p-cpe:/a:canonical:ubuntu_linux:tcpd, cpe:/o:canonical:ubuntu_linux:7.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 2007/08/29

Reference Information

CVE: CVE-2007-4601

OSVDB: 40140

USN: 507-1

CWE: 264