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Date: Wed, 3 Nov 2004 10:48:39 -0200 From: Conectiva Updates <secure@...ectiva.com.br> To: conectiva-updates@...aleguas.conectiva.com.br, lwn@....net, bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com, linsec@...ts.seifried.org Subject: [CLA-2004:882] Conectiva Security Announcement - squid -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : squid SUMMARY : Fixes for squid vulnerabilities DATE : 2004-11-03 10:48:00 ID : CLA-2004:882 RELEVANT RELEASES : 9, 10 - ------------------------------------------------------------------------- DESCRIPTION Squid[1] is a full-featured web proxy cache. This announcement fixes a denial of service vulnerability[2] in squid caused by a malformed NTLMSSP packet. This causes a negative value to be passed to memcpy on servers with NTLM authentication enabled, making squid abort and causing a denial of service condition. Fixes for two segmentation faults were also included: when using a blank user name in digest authentication[3] and after the message "Likely proxy abuse detected" has been printed to cache.log[4]. Also fixes a denial of service situation[5] caused by certain malformed SNMP requests that when received by squid could restart it with a segmentation fault error. For Conectiva Linux 9, this announcement also fixes a buffer overflow vulnerability[6] in the ntlm_check_auth (NTLM authentication) function that allowed remote attackers to execute arbitrary code via a long password. SOLUTION It is recommended that all squid users upgrade to the latest packages. This update will automatically restart the service if it is already running. REFERENCES 1.http://squid.nlanr.net/ 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0832 3.http://www1.uk.squid-cache.org/squid/Versions/v2/2.5/bugs/#squid-2.5.STABLE5-digest_blank 4.http://www1.uk.squid-cache.org/squid/Versions/v2/2.5/bugs/#squid-2.5.STABLE5-proxy_abuse 5.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0918 6.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0541 UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/10/SRPMS/squid-2.5.5-63116U10_4cl.src.rpm ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-2.5.5-63116U10_4cl.i386.rpm ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-auth-2.5.5-63116U10_4cl.i386.rpm ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-extra-templates-2.5.5-63116U10_4cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/SRPMS/squid-2.5.5-25761U90_7cl.src.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-2.5.5-25761U90_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-auth-2.5.5-25761U90_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-extra-templates-2.5.5-25761U90_7cl.i386.rpm ADDITIONAL INSTRUCTIONS The apt tool can be used to perform RPM packages upgrades: - run: apt-get update - after that, execute: apt-get upgrade Detailed instructions regarding the use of apt and upgrade examples can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en - ------------------------------------------------------------------------- All packages are signed with Conectiva's GPG key. The key and instructions on how to import it can be found at http://distro.conectiva.com.br/seguranca/chave/?idioma=en Instructions on how to check the signatures of the RPM packages can be found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en - ------------------------------------------------------------------------- All our advisories and generic update instructions can be viewed at http://distro.conectiva.com.br/atualizacoes/?idioma=en - ------------------------------------------------------------------------- Copyright (c) 2004 Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@...aleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@...aleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQFBiNOm42jd0JmAcZARAuHhAKCQ6gd4JsoVtoGECoI3urtPR4kGhACeKiPB nU7lhnlGZ+D+uhuNqdA1qyk= =71kq -----END PGP SIGNATURE-----
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