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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : apache
SUMMARY : Fix for some vulnerabilities
DATE : 2003-11-05 19:18:00
ID : CLA-2003:775
RELEVANT
RELEASES : 7.0, 8, 9

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DESCRIPTION
Apache[1] is the most popular webserver in use today.

New versions of the Apache web server have been made available[2][3]
with the following security fixes:

1. Buffer overflow in mod_alias and mod_rewrite (CAN-2003-0542) [4]
A buffer overflow could occur in mod_alias and mod_rewrite when a
regular expression with more than 9 captures is configured. Users who
can create or modify configuration files (httpd.conf or .htaccess,
for example) could trigger this. This vulnerability affects Apache
1.3.x and Apache 2.0.x.

2. mod_cgid mishandling of CGI redirect paths (CAN-2003-0789) [5]
mod_cgid mishandling of CGI redirect paths could result in CGI output
going to the wrong client when a threaded MPM is used. The packages
provided with Conectiva Linux 9 are not vulnerable to this issue
because they are not compiled with that MPM, but the fix has been
included because new packages for Conectiva Linux 9 were already
being built for the suexec problem (see below).

In addition to the above security fixes, "suexec" has been correctly
built in the Conectiva Linux 9 packages, fixing[6] the problem where
CGI scripts could not be run from the user's home directory.

SOLUTION
It is recommended that all Apache users upgrade their packages.

IMPORTANT: it is necessary to manually restart the httpd server after
upgrading the packages. In order to do this, execute the following as
root:

service httpd stop

(wait a few seconds and check with "pidof httpd" if there are any
httpd processes running. On a busy webserver this could take a little
longer)

service httpd start


REFERENCES
1. http://apache.httpd.org/
2. http://www.apache.org/dist/httpd/Announcement2.html
3. http://www.apache.org/dist/httpd/Announcement.html
4. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0542
5. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0789
6. http://bugzilla.conectiva.com.br/show_bug.cgi?id=8754 (pt_BR only)

UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/apache-1.3.28-1U70_2cl.src
.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/apache-1.3.28-1U70_2cl.i386
.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/apache-devel-1.3.28-1U70_2c
l.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/apache-doc-1.3.28-1U70_2cl.
i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/apache-1.3.28-1U80_2cl.src.r
pm
ftp://atualizacoes.conectiva.com.br/8/RPMS/apache-1.3.28-1U80_2cl.i386.r
pm
ftp://atualizacoes.conectiva.com.br/8/RPMS/apache-devel-1.3.28-1U80_2cl.
i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/apache-doc-1.3.28-1U80_2cl.i3
86.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/apache-2.0.45-28790U90_5cl.s
rc.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-2.0.45-28790U90_5cl.i3
86.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-devel-2.0.45-28790U90_
5cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-doc-2.0.45-28790U90_5c
l.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-htpasswd-2.0.45-28790U
90_5cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-2.0.45-28790U90_
5cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-static-2.0.45-28
790U90_5cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr0-2.0.45-28790U90_5cl.i
386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_auth_ldap-2.0.45-28790U90
_5cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_dav-2.0.45-28790U90_5cl.i
386.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 reagarding 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) 2003 Conectiva Inc.
http://www.conectiva.com

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