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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : squid
SUMMARY : Fixes for multiple squid vulnerabilities
DATE : 2005-04-27 14:19:00
ID : CLA-2005:948
RELEVANT
RELEASES : 9, 10
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DESCRIPTION
Squid[1] is a full-featured web proxy cache.
This announcement upgrades Squid from 2.5STABLE5 to 2.5STABLE9 in
order to fix bug #13718[2] and also fixes the two following
vulnerabilities:
1.Unexpected access control results on configuration errors[3]
On configuration errors involving wrongly defined or missing acls
the http_access results may be different than expected, possibly
allowing more access than intended. This patch makes such
configuration errors a fatal error, preventing the service from
starting until the access control configuration errors have been
corrected.
2.Race condition related to Set-Cookie header[4]
A race window has been discovered where Set-Cookie headers may leak
to another users if the requested server relies on the old (obsolete
since 1997) Netscape Set-Cookie specifications in how caches should
handle the Set-Cookie header on otherwise cacheable content.
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/
2.http://bugzilla.conectiva.com.br/show_bug.cgi?id=13718
3.http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-acl_error
4.http://www1.uk.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-setcookie
UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/SRPMS/squid-2.5.5-77559U10_10cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-2.5.5-77559U10_10cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-auth-2.5.5-77559U10_10cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/squid-extra-templates-2.5.5-77559U10_10cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/squid-2.5.5-77559U90_12cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-2.5.5-77559U90_12cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-auth-2.5.5-77559U90_12cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/squid-extra-templates-2.5.5-77559U90_12cl.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
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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
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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en
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Copyright (c) 2004 Conectiva Inc.
http://www.conectiva.com
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