-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : squid SUMMARY : Several vulnerabilities DATE : 2002-07-05 11:42:00 ID : CLA-2002:506 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION Squid is a caching/proxy daemon for HTTP, FTP and gopher. The squid team released squid 2.4.stable7 which fixes a number of remote vulnerabilities[1] in previous versions: - Gopher client buffer overflows[2] - FTP directory parsing buffer overflow[3] - FTP data channel sanity check[4] - Proxy authentication credentials forward[5] An attacker can exploit some of these vulnerabilities to execute arbitrary code remotely as the user running squid (which in Conectiva Linux is "proxy" or "nobody"), cause a Denial-of-Service (DoS) in the server or inject/get invalid data in/from the network. This new release also drops any requests using transfer-encoding[6] in order to avoid exploits of a known issue[7] in vulnerable apache web servers. This does not affect the functionality of squid since it is a HTTP/1.0 proxy and as such it does not support transfer-encoding requests. 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://www.squid-cache.org/Advisories/SQUID-2002_3.txt 2.http://www.squid-cache.org/Versions/v2/2.4/bugs/#squid-2.4.STABLE6-gopher 3.http://www.squid-cache.org/Versions/v2/2.4/bugs/#squid-2.4.STABLE6-ftp_directories 4.http://www.squid-cache.org/Versions/v2/2.4/bugs/#squid-2.4.STABLE6-ftp_sanitycheck 5.http://www.squid-cache.org/Versions/v2/2.4/bugs/#squid-2.4.STABLE6-proxy_auth 6.http://www.squid-cache.org/Versions/v2/2.4/bugs/#squid-2.4.STABLE6-deny_transfer_encoding 7.http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000498&idioma=en DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/RPMS/squid-2.4.7-1U60_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/squid-2.4.7-1U60_3cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/squid-2.4.7-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/squid-auth-2.4.7-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/squid-doc-2.4.7-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/squid-templates-2.4.7-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/squid-2.4.7-1U70_3cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/squid-2.4.7-1U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/squid-auth-2.4.7-1U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/squid-doc-2.4.7-1U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/squid-templates-2.4.7-1U8_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/squid-2.4.7-1U8_3cl.src.rpm ADDITIONAL INSTRUCTIONS Users of Conectiva Linux version 6.0 or higher may use apt to perform upgrades of RPM packages: - add the following line to /etc/apt/sources.list if it is not there yet (you may also use linuxconf to do this): rpm [cncbr] ftp://atualizacoes.conectiva.com.br 6.0/conectiva updates (replace 6.0 with the correct version number if you are not running CL6.0) - run: apt-get update - after that, execute: apt-get upgrade Detailed instructions reagarding 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 - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribeat_private unsubscribe: conectiva-updates-unsubscribeat_private -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE9JbEB42jd0JmAcZARAhgWAJ9FZwMs62TVL1//hH//dkuBfC5PawCeIyTh 6spKP6ZZnwmN5RUHu4bIbro= =9gtP -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Fri Jul 05 2002 - 08:31:31 PDT