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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2003-201: ypserv Vulnerability Assessment Details
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RHSA-2003-201: ypserv |
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Check for the version of the ypserv packages Detailed Explanation for this Vulnerability Assessment Updated ypserv packages fixing a denial of service vulnerability are now available. The ypserv package contains the Network Information Service (NIS) server. A vulnerability has been discovered in the ypserv NIS server prior to version 2.7. If a malicious client queries ypserv via TCP and subsequently ignores the server's response, ypserv will block attempting to send the reply. This results in ypserv failing to respond to other client requests. Versions 2.7 and above of ypserv have been altered to fork a child for each client request, thus preventing any one request from causing the server to block. Red Hat recommends that users of NIS upgrade to these packages, which contain version 2.8.0 of ypserv and are therefore not vulnerable to this issue. Solution : http://rhn.redhat.com/errata/RHSA-2003-201.html Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security |
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