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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 >> Ubuntu Local Security Checks >> USN129-1 : squid vulnerability

USN129-1 : squid vulnerability

Vulnerability Assessment Summary squid vulnerability Detailed Explanation for this Vulnerability Assessment Summary : These remote packages are missing security patches : - squid - squid-cgi - squid-common - squidclient Description : It was discovered that Squid did not verify the validity of DNS server responses. When Squid is started, it opens a DNS client UDP port whose number is randomly assigned by the operating system. Unless your network firewall is configured to accept DNS responses only from known good nameservers, this vulnerability permited users within the local network to inject arbitrary DNS responses into Squid ("DNS spoofing"). This could be used to present different web pages to users from those they actually requested. Solution : Upgrade to : - squid-2.5.8-3ubuntu1.2 (Ubuntu 5.04) - squid-cgi-2.5.8-3ubuntu1.2 (Ubuntu 5.04) - squid-common-2.5.8-3ubuntu1.2 (Ubuntu 5.04) - squidclient-2.5.8-3ubuntu1.2 (Ubuntu 5.04) Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: Ubuntu Security Notice (C) 2005 Canonical, Inc. / NASL script (C) 2005 Michel Arboi

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