Test ID:	1.3.6.1.4.1.25623.1.0.51822
Category:	Conectiva Local Security Checks
Title:	Conectiva Security Advisory CLA-2005:931
Summary:	NOSUMMARY
Description:	Description: The remote host is missing updates announced in advisory CLA-2005:931. Squid[1] is a full-featured web proxy cache. This announcement fixes the following vulnerabilities for Squid: 1.Strengthen Squid from HTTP response splitting cache pollution attack[2] This patch additionaly strengthens Squid from the HTTP response splitting cache pollution attack described by Sanctum. 2.Reject malformed HTTP requests/responses that conflict with HTTP spec[3] This patch makes Squid considerably stricter while parsing the HTTP protocol and also adds a new relaxed_header_parser directive which defaults to on. If set off Squid will become really strict about CR characters and whitespace in header names, while in the default on setting Squid will ignore (and automatically clean up) common deviations from these parts of the HTTP specification. 3.Correct handling of oversized reply headers[4] This patch addresses a HTTP protocol mismatch related to oversized reply headers. In addition it enhances the cache.log reporting on reply header parsing failures to make it easier to track down which sites are malfunctioning. 4.Segmentation fault on failed PUT/POST request[5] An inconsistent state is entered on a failed PUT/POST request making a high risk for segmentation faults or other strange errors. 5.Data corruption when HTTP reply headers is split in several packets[6] Under certain conditions involving HTTP headers split over multiple reply packets the HTTP reply may be corrupted by Squid. Symptoms range from hanging requests to corrupted data or error messages about the reply sent to the clients (usually httpProcessReplyHeader: Too large reply header). 6.Assertion failure on certain odd DNS responses[7] Squid may abort with xstrndup: Asserton 'n' failed or other errors when receiving certain odd DNS responses. For Conectiva Linux 9, the Squid package has been merged with Conectiva Linux 10 package, since both used the same base version. Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade' http://www.squid-cache.org/ http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-response_splitting http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-header_parsing http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-oversize_reply_headers http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-post http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-split_headers http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE8-dns_assert http://www.securityspace.com/smysecure/catid.html?in=CLA-2005:931 http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=000931 Risk factor : High
Copyright	Copyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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