PK29827: IBM HTTP SERVER 2.0.47 AND 2.0.42 CUMULATIVE E-FIX | |||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description This interim fix corrects multiple problems which were resolved after the previous interim fix, PK25355, including security issues CVE-2006-3747 and CVE-2006-3918.Local fix Problem summary **************************************************************** * USERS AFFECTED: IBM HTTP SERVER 2.0.42.x/2.0.47.x users * **************************************************************** * PROBLEM DESCRIPTION: CVE-2006-3747 mod_rewrite vulnerability * * CVE-2006-3918 Expect header vulnerability and other fixes * * since PK25355 * **************************************************************** * RECOMMENDATION: * **************************************************************** Address a security issue and other defects corrected after the previous cumulative fix for these releases, PK25355. - PK29156 mod_rewrite defect led to vulnerability with IHS 2.x o Windows and HP-UX - PK28359 mod_ibm_ssl crypto card initialization problem when SSLServerCert directive is used - PK28348 mod_cgid misprocessing when ScriptLog is defined insid VirtualHost Changes with previous cumulative fixes, included here: - CVE-2005-3352 mod_imap: Escape untrusted referer header in response to prevent potential cross-site scripting vulnerability - PK21998 SSLProtocolDisable directive can disable specific protocols (e.g., "SSLProtocolDisable SSLv2" in virtual host) - CVE-2006-3918 PK24631 HTML-escape the value of the Expect header in the error response to a bad Expect value - PK24686 Fix missing path information in arg0 of CGI scripts spawned by mod_cgid - PK22995 Fix excessive forking in worker MPM if child process startup is slow. - mod_cache: Fix inconsistent results from requests which are implemented as subrequests. - PK22485 memory leak and crash if files being served are truncated - allow diagnostic modules to track activity in log-transaction hook - PK20184 crashes related to mod_ibm_ssl and mod_ext_filter; also, deadlock of filter processes with mod_ext_filter - PK20050 status line problem with WebSphere plug-in and byterange filter - PK17802 mod_speling crash with WebSphere request - PK19060 mod_ibm_ldap doesn't retry request when server timed out connection - PK18642 mod_ibm_ldap memory leak - mod_ibm_ssl now removes null ciphers from default list - Apache.exe -V on Windows and apachectl -V on other platforms now displays CVE ids of applicable Apache vulnerabilities resolved in this level of IBM HTTP Server - PK13858 Do not remove Content-Length header for a proxied HEAD request, allowing Windows Update to work through an IBM HTTP Server proxy. - PK15553 multiple mod_include fixes, including a change to log a warning mssage if mod_include is only partially configured (filter enabled but option not enabled) - Prevent hosts with SSLProxyEngine On from covering up failed initialization of primary SSL environment. - Enable TLS protocol in the GSKit proxy environment to allow for connections to backends using FIPS ciphers. (applicable to 2.0.47 only) - PK13453 Allow SID reuse when SSLClientAuth is optional and client does not provide certificate.(2.0.47 only) - PK15926 Resolve conflict between mod_ibm_ldap and the use of ldap in /etc/nsswitch.conf for system user authentication on Linux. - mod_ibm_ssl: improve logging of handshake errors - mod_ibm_ssl: improve accuracy of "Using xxx Cipher" message - mod_ibm_ssl: fix cipher spec processing problem when invalid SSLv3 cipher was configured (applicable to 2.0.42 only) - PK13066 CAN-2005-2970 worker MPM memory leak after aborted connection (non-Windows platforms) - Prevent double-free when an error occurred reading data from sidd (non-Windows platforms only). - PK11929 CAN-2005-2491 Fix integer overflow in PCRE which leads to a heap-based buffer overflow. - PK11929 CAN-2005-2728 Fix byte-range filter which allowed remote attackers to cause a denial of service (memory consumption) via an HTTP header with large Range field - Handle strerror() returning NULL on Solaris, resolving possible crashes when writing to the error log. - Handle SSL requests where FIN is received from the client on Keepalive connections before the response is written. - sidd now reports specific error code and filename when its trace or error log can't be opened. - Fixed swapped references to ciphers 62 and 64. This resulted in SSLCipher* directives operating on the wrong cipher (i.e., using 64 if 62 had been specified). - Fix SSL handling of Timeout values larger than 2000 seconds, resolving SSL handshake failures - PK07831 Resolve incompatibility between IHS and certain GSKit levels - PK07747 Resolve incompatibility between AFPA support on Windows and Microsoft Security Patch MS05-019 - CAN-2005-2088 preventative measures to prevent HTTP request smuggling, from Apache 2.1.6 and future Apache 2.0.55 - mod_ibm_ssl: include client IP address on many messages - mod_ibm_ssl: improve reporting of many SSL communication errors - Fix a servlet timeout when a POST response page contains SSI tags - Set RH variable to indicate which module handled or failed the request - dbmmanage: Select the database format which is accepted by IBM HTTP Server - mod_rewrite: improve performance with large RewriteMap files - Fix memory leak in the cache handling of mod_rewrite - Fix storage corruption problem with mod_userdir+suexec processing - PK03603 worker mpm: don't take down the whole server for a transient thread creation failure - PK05830 Prevent hangs of child processes when writing to piped loggers at the time of graceful restart - PK05957 Support the suppress-error-charset setting, as with Apache 1.3.x - Set REDIRECT_REMOTE_USER for redirection of authenticated requests - worker mpm: lower severity of mutex "error" message which can occur normally during restart - display time taken to process request in mod_status - mod_proxy: Handle client-aborted connections correctly - mod_mime_magic on Windows: support magic files with native line endings - support SHA1 passwords for mod_auth and mod_auth_dbm - support SendBufferSize on Windows - start piped loggers via the shell on Unix, to support redirection - mod_cgid: Fix buffer overflow processing ScriptSock directive - mod_ibm_ldap: put timestamp on ldap trace records for correlation with other logs - mod_ibm_ldap: return authorization error instead of internal server error when password has expired - mod_ibm_ldap: add configuration control over whether or not referrals are chased via "LdapReferrals On|Off " and "LdapReferralHopLimit nnn" - mod_ibm_ldap: add rebind support for improved compatibility with Microsoft Active Directory 2003 - remove 2GB log file size restriction on Linux and Unix systems - PQ98957 fix HTTP RFC violations with handling of request bodies by proxy - PQ97712 fix worker MPM problem which left stranded processes after shutdown - fix mod_deflate problems handling 304 or 204 responses - PK00175 mod_ibm_ssl corrupts LIBPATH, breaking startup of third-party module - fix mod_ibm_ssl storage leak during apachectl restart or apachectl graceful processing - PQ86346 Seg fault with IHS ldap/nss ldap on 390 - fix mod_fastcgi incompatibility with WebSphere plug-in - rename zlib symbols used by mod_deflate to avoid collision with third-party modules - add "/server-status?showmodule" support for displaying name of module where request is stuck; ihsdiag 1.4.0 also exploits this support - CAN-2003-0020 escape data before writing to error log - fix ownership of sidd socket if IHS started as non-root on HP-UX - resolve CAN-2004-0809 and CAN-2004-0942 vulnerabilities - handle rewrite rules in Location containers applying to WebSphere resources - shut down worker MPM more quickly when processes are slow to exit - fix Expires handling with mod_cache - reduce severity of message for TCP_NODELAY error - PQ97125 CAN-2004-0942 fix memory consumption dos for folded MIME headers - add fatal exception hook for use by diagnostic modules - log reason for failing to connect to session id cache - fixed invalid info messages about non-FIPS cipher if FIPS enabled - fixed timeout problem in mod_ibm_ssl under load - fixed LDAP not escaping ctrl chars \,(,), and * as required by RFC 2254 - changed LDAP queries to request minimal set of attributes - Potential denial of service exposure, CAN-2004-0786 - CAN-2004-0747 buffer overflow if extremely large environment variables are referenced in httpd.conf or .htaccess - fix termination of long request lines - fix mod_headers functional regression since 1.3 - fix mod_deflate large memory consumption - fix handling of "AllowEncodedSlashes On" - fix stranded piped logger processes on Windows change default Windows service name to the same service name set by IHS installer so that -n option is not required - improve compatibility with 3rd party layered service providers on Win32 - fix crash in mod_ibm_ssl when using client auth - CAN-2004-0493 remote memory allocation vulnerability - rotatelogs ability to use local time - "VirtualHost myhost" now applies to all IP addresses for myhost - Fix mod_deflate to handle zero length responses (such as 304 responses) - PQ89510 PDF files corrupted with acrobat over SSL (Windows) - Unnecessary mod_expires error message in log - Microsoft Windows pool corruption at startup leading to restart - Some random storage logged for excessively long request line (Fixes in PQ85834 are not listed here.)Problem conclusion See APARs for individual fixes.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros Publications Referenced
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Product categories: Software > Application Servers >
Distributed Application & Web Servers > IBM HTTP Server >
Runtime
Operating system(s):
Software version: 00A
Software edition:
Reference #: PK29827
IBM Group: Software Group
Modified date: Aug 13, 2007
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