[Security Release] Apache HTTP Server 2.0.43

-----BEGIN PGP SIGNED MESSAGE-----

                            Apache 1.3.27 Released

   The Apache Software Foundation and The Apache Server Project are    pleased to announce the release of version 1.3.27 of the Apache HTTP    Server. This Announcement notes the significant changes in 1.3.27    as compared to 1.3.26.

   This version of Apache is principally a security and bug fix release.    A summary of the bug fixes is given at the end of this document.    Of particular note is that 1.3.27 addresses and fixes 3 security    vulnerabilities.

   CAN-2002-0839 (cve.mitre.org)[1]: A vulnerability exists in all versions    of Apache prior to 1.3.27 on platforms using System V shared memory based    scoreboards. This vulnerability allows an attacker who can execute under    the Apache UID to exploit the Apache shared memory scoreboard format and    send a signal to any process as root or cause a local denial of service    attack. We thank iDefense for their responsible notification and    disclosure of this issue.

   CAN-2002-0840 (cve.mitre.org)[2]: Apache is susceptible to a cross site    scripting vulnerability in the default 404 page of any web server hosted    on a domain that allows wildcard DNS lookups. We thank Matthew Murphy    for notification of this issue.    

   CAN-2002-0843 (cve.mitre.org)[3]: There were some possible overflows    in ab.c which could be exploited by a malicious server. Note that this    vulnerability is not in Apache itself, but rather one of the support    programs bundled with Apache. We thank David Wagner for the responsible    notification and disclosure of this issue.

   We consider Apache 1.3.27 to be the best version of Apache 1.3 available    and we strongly recommend that users of older versions, especially of    the 1.1.x and 1.2.x family, upgrade as soon as possible. No further    releases will be made in the 1.2.x family.

   Apache 1.3.27 is available for download from    

Do you need help?

In addition to our free technical library, Pantek provides professional IT services to companies who utilize Open Source software: Learn more about Pantek's Technical Support offerings Place an order for 24/7/365 Technical Support here Learn more about Pantek, who we are, and what we do Chat with a Live Operator Related httpd.apache.org Links announce bugs cvs dev docs gui-dev modproxy-dev packagers testers Request more information about Pantek

       http://www.apache.org/dist/httpd/

   Please see the CHANGES_1.3 file in the same directory for a full list    of changes.

   Binary distributions are available from

       http://www.apache.org/dist/httpd/binaries/

   The source and binary distributions are also available via any of the    mirrors listed at

       http://www.apache.org/mirrors/

   As of Apache 1.3.12 binary distributions contain all standard Apache    modules as shared objects (if supported by the platform) and include    full source code. Installation is easily done by executing the    included install script. See the README.bindist and INSTALL.bindist    files for a complete explanation. Please note that the binary    distributions are only provided for your convenience and current    distributions for specific platforms are not always available. Win32    binary distributions are based on the Microsoft Installer (.MSI)    technology. While development continues to make this installation method    more robust, questions should be directed to the    news:comp.infosystems.www.servers.ms-windows newsgroup.

   For an overview of new features introduced after 1.2 please see    

Do you need more help?

In addition to our free technical library, Pantek provides professional IT services to companies who utilize Open Source software: Learn more about Pantek's Technical Support offerings Place an order for 24/7/365 Technical Support here Learn more about Pantek, who we are, and what we do Chat with a Live Operator Related httpd.apache.org Links announce bugs cvs dev docs gui-dev modproxy-dev packagers testers Request more information about Pantek

   http://httpd.apache.org/docs/new_features_1_3.html

   In general, Apache 1.3 offers several substantial improvements over    version 1.2, including better performance, reliability and a wider    range of supported platforms, including Windows NT and 2000 (which    fall under the "Win32" label), OS2, Netware, and TPE threaded    platforms.

   IMPORTANT NOTE FOR APACHE USERS: Apache 1.3 was designed for Unix OS    variants. While the ports to non-Unix platforms (such as Win32, Netware    or OS2) are of an acceptable quality, Apache 1.3 is not optimized for    these platforms. Security, stability, or performance issues on these    non-Unix ports do not generally apply to the Unix version, due to    software's Unix origin.

   Apache 2.0 has been structured for multiple operating systems from its    inception, by introducing the Apache Portability Library and MPM modules.    Users on non-Unix platforms are strongly encouraged to move up to    Apache 2.0 for better performance, stability and security on their    platforms.

   Apache is the most popular web server in the known universe; over half    of the servers on the Internet are running Apache or one of its    variants.

                     Apache 1.3.27 Major changes

  Security vulnerabilities

• Fix the security vulnerability noted in CAN-2002-0839 (cve.mitre.org) regarding ownership permissions of System V shared memory based scoreboards. The fix resulted in the new ShmemUIDisUser directive.
• Fix the security vulnerability noted in CAN-2002-0840 (cvs.mitre.org) regarding a cross-site scripting vulnerability in the default error page when using wildcard DNS.
• Fix the security vulnerability noted in CAN-2002-0843 (cve.mitre.org) regarding some possible overflows in ab.c which could be exploited by a malicious server.

  New features

   The main new features in 1.3.27 (compared to 1.3.26) are:

• The new ErrorHeader directive has been added.
• Configuration file globbing can now use simple pattern matching.
• The protocol version (eg: HTTP/1.1) in the request line parsing is now case insensitive.
• ap_snprintf() can now distinguish between an output which was truncated, and an output which exactly filled the buffer.
• Add ProtocolReqCheck directive, which determines if Apache will check for a valid protocol string in the request (eg: HTTP/1.1) and return HTTP_BAD_REQUEST if not valid. Versions of Apache prior to 1.3.26 would silently ignore bad protocol strings, but 1.3.26 included a more strict check. This makes it runtime configurable.
• Added support for Berkeley-DB/4.x to mod_auth_db.
• httpd -V will now also print out the compile time defined HARD_SERVER_LIMIT value.

Can we help you?

In addition to our free technical library, Pantek provides professional IT services to companies who utilize Open Source software: Learn more about Pantek's Technical Support offerings Place an order for 24/7/365 Technical Support here Learn more about Pantek, who we are, and what we do Chat with a Live Operator Related httpd.apache.org Links announce bugs cvs dev docs gui-dev modproxy-dev packagers testers Request more information about Pantek

   New features that relate to specific platforms:

• Support Caldera OpenUNIX 8.
• Use SysV semaphores by default on OpenBSD.
• Implemented file locking in mod_rewrite for the NetWare CLib platform.

  Bugs fixed

   The following bugs were found in Apache 1.3.26 (or earlier) and have    been fixed in Apache 1.3.27:

• mod_proxy fixes:
  • The cache in mod_proxy was incorrectly updating the Content-Length value from 304 responses when doing validation.
  • Fix a problem in proxy where headers from other modules were added to the response headers when this was already done in the core already.
• In 1.3.26, a null or all blank Content-Length field would be triggered as an error; previous versions would silently ignore this and assume 0. 1.3.27 restores this previous behavior.
• Win32: Fix one byte buffer overflow in ap_get_win32_interpreter when a CGI script's #! line does not contain a \r or \n (i.e. a line feed character) in the first 1023 bytes. The overflow is always a '\0' (string termination) character.

  References

   [1] 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0839
   [2] 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0840  
   [3] 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0843

-----BEGIN PGP SIGNATURE-----
Version: PGP 6.5.8

iQEVAwUBPZyXsvcTqHkQ/eB1AQEG/AgAlUdgzu6HmMhyTtPQUBJA0FERK6US9zB8 SjNM/ejzuXFJe4XGvZ8+OTteo8yD+EjswoEYD6dRdwKtS1jViTLh2K3QlfpZt016 gDqPp/RM4eMtfUparL8vUcuQUxgK3RyizS49NswewJpWOQU5gqYTL5BXFzUDiH9y LLphcBlTqDN4vtHEDZGegakyvEBsFpV2QbON8tJiziNwtMPY41p4B/p5erGbzEyl koiuaF0TDfWcaFG7SBxP1VaJSXDQ26xS6nUHu7hPZPfgAwFBSqKCzfuQD0nN/g9f X/VCp2YMQpC0pee7g+AEqo2TM23/5QDHLISYv1qRqnitObzxopIj7Q== =EzDK
-----END PGP SIGNATURE----- Received on Tue May 1 21:54:21 2001