Ubuntu Security Notice 414-1 - David Duncan Ross Palmer and Henrik Nordstrom discovered that squid incorrectly handled special characters in FTP URLs. Remote users with access to squid could crash the server leading to a denial of service. Erick Dantas Rotole and Henrik Nordstrom discovered that squid could end up in an endless loop when exhausted of available external ACL helpers. Remote users with access to squid could cause CPU starvation, possibly leading to a denial of service. This does not affect a default Ubuntu installation, since external ACL helpers must be configured and used.
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Mandriva Linux Security Advisory - A vulnerability in squid was discovered that could be remotely exploited by using a special ftp:// URL. Another Denial of Service vulnerability was discovered in squid 2.6 that allows remote attackers to crash the server by causing an external_acl_queue overload. Additionally, a bug in squid 2.6 for max_user_ip handling in ntlm_auth has been corrected.
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SUSE Security Announcement - This update fixes a remotely exploitable denial-of-service bug in squid that can be triggered by using special ftp:// URLs. Additionally the 10.2 package needed a fix for another DoS bug and for max_user_ip handling in ntlm_auth.
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