CONECTIVA LINUX SECURITY ANNOUNCEMENT
| PACKAGE | : | apache |
| SUMMARY | : | Apache 2 vulnerability |
| DATE | : | 2003-06-16 18:27:00 |
| ID | : | CLA-2003:661 |
| RELEVANT RELEASES | : | 9 |
DESCRIPTION
Apache[1] is the most popular webserver in use today.
This update addresses two security vulnerabilities which have
been fixed in the recently released[2] 2.0.46 version:
1) CAN-2003-0245[3]
iDefense published[5] an advisory about a vulnerability in the APR
library used by Apache 2. This library contains a vulnerability in
the apr_psprintf() function which could be used to make apache
reference invalid memory.
The most immediate impact of this vulnerability is a Denial of
Service condition. Arbitrary command execution remains a
possibility, but is deemed to be difficult to achieve outside a
controlled environment.
The packages provided with this update contain a fix for this
vulnerability.
2) CAN-2003-0189[4]
A problem with the build configuration scripts caused the Apache
basic authentication module to not be thread-safe. Systems running
a threaded server would then be vulnerable to a Denial of Service
condition when authenticating users using this module. Apache in
Conectiva Linux 9 is not vulnerable to this issue because
it is not built with threads support. However, the packages
available through this update have been patched to fix this problem
to allow users to recompile Apache with threads support in the
event they choose to do so.
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 apache stop
(wait a few seconds and check with “ps ax|grep httpd” if there
are any httpd processes running. On a busy webserver this could
take a little longer)
service apache start
REFERENCES
- http://httpd.apache.org/
- http://www.apache.org/dist/httpd/Announcement2.html
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0245
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0189
- http://www.idefense.com/advisory/05.30.03.txt
UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/9/SRPMS/apache-2.0.45-28790U90_2cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-devel-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-doc-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/apache-htpasswd-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr-devel-static-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libapr0-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_auth_ldap-2.0.45-28790U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/mod_dav-2.0.45-28790U90_2cl.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 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
Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com
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