<!--
- File : $Source: /cvsroot/ijbswa/current/doc/source/changelog.sgml,v $
+ File : doc/source/changelog.sgml
Purpose : Entity included in other project documents.
- $Id: changelog.sgml,v 2.22 2016/08/26 12:31:25 fabiankeil Exp $
-
- Copyright (C) 2013-2016 Privoxy Developers https://www.privoxy.org/
+ Copyright (C) 2013-2021 Privoxy Developers https://www.privoxy.org/
See LICENSE.
======================================================================
-->
<para>
- <application>Privoxy 3.0.26</application> stable is a bug-fix release
- for the previously released 3.0.25 beta which introduced client-specific
- tags and included a couple of minor improvements.
+ <application>Privoxy 3.0.33</application> fixes an XSS issue
+ and multiple DoS issues and a couple of other bugs.
+ The issues also affect earlier Privoxy releases.
+ <application>Privoxy 3.0.33</application> also comes with
+ a couple of general improvements an new features.
+</para>
+<para>
+ Changes in <application>Privoxy 3.0.33</application> stable:
</para>
<para>
<itemizedlist>
<itemizedlist>
<listitem>
<para>
- Fixed crashes with "listen-addr :8118" (SF Bug #902).
- The regression was introduced in 3.0.25 beta and reported
- by Marvin Renich in Debian bug #834941.
- </para>
+ handle_established_connection(): Skip the poll()/select() calls
+ if TLS data is pending on the server socket. The TLS library may
+ have already consumed all the data from the server response in
+ which case poll() and select() will not detect that data is
+ available to be read.
+ Fixes SF bug #926 reported by Wen Yue.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ continue_https_chat(): Update csp->server_connection.request_sent
+ after sending the request to make sure the latency is calculated
+ correctly. Previously https connections were not reused after
+ timeout seconds after the first request made on the connection.
+ </para>
</listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- General improvements:
- <itemizedlist>
<listitem>
<para>
- Log when privoxy is toggled on or off via cgi interface.
+ free_pattern_spec(): Don't try to free an invalid pointer
+ when unloading an action file with a TAG pattern while
+ Privoxy has been compiled without FEATURE_PCRE_HOST_PATTERNS.
+ Closes: SF patch request #147. Patch by Maxim Antonov.
</para>
</listitem>
<listitem>
<para>
- Highlight the "Info: Now toggled " on/off log message
- in the Windows log viewer.
+ Establish the TLS connection with the client earlier and decide
+ how to route the request afterwards. This allows to change the
+ forwarding settings based on information from the https-inspected
+ request, for example the path.
</para>
</listitem>
<listitem>
<para>
- Highlight the loading actions/filter file log message
- in the Windows log viewer.
+ Adjust build_request_line() to create a CONNECT request line when
+ https-inspecting and forwarding to a HTTP proxy.
+ Fixes SF bug #925 reported by Wen Yue.
</para>
</listitem>
<listitem>
<para>
- Mention client-specific tags on the toggle page as a
- potentionally more appropriate alternative.
+ load_config(): Add a space that was missing in a log message.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Documentation improvements:
+ General improvements:
<itemizedlist>
<listitem>
<para>
- Update download section on the homepage.
- The downloads are available from the website now.
+ serve(): Close the client socket as well if the server socket
+ for an inspected connection has been closed. Privoxy currently
+ can't establish a new server connection when the client socket
+ is reused and would drop the connection in continue_https_chat()
+ anyway.
</para>
</listitem>
<listitem>
<para>
- Add sponsor FAQ.
+ Don't disable redirect checkers in redirect_url()
+ Disable them in handle_established_connection() instead.
+ Doing it in redirect_url() prevented the +redirect{} and
+ +fast-redirects{} actions from being logged with LOG_LEVEL_ACTIONS.
</para>
</listitem>
<listitem>
<para>
- Remove obsolete reference to mailing lists hosted at SourceForge.
+ handle_established_connection(): Slightly improve a comment
</para>
</listitem>
<listitem>
<para>
- Update the "Before the Release" section of the developer manual.
+ handle_established_connection(): Fix a comment
</para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Infrastructure improvements:
- <itemizedlist>
+ </listitem>
<listitem>
<para>
- Add perl script to generate an RSS feed for the packages
- Submitted by "Unknown".
+ socks5_connect(): Fix indentation.
</para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Build system improvements:
- <itemizedlist>
+ </listitem>
<listitem>
<para>
- strptime.h: fix a compiler warning about ambiguous else.
+ handle_established_connection(): Improve an error message
</para>
</listitem>
<listitem>
<para>
- configure.in: Check for Docbook goo on the BSDs as well.
+ create_pattern_spec(): Fix ifdef indentation
</para>
</listitem>
<listitem>
<para>
- GNUMakefile.in: Let the dok-user target remove temporary files.
+ Fix comment typos
</para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- </itemizedlist>
-</para>
-
-<para>
- Changes between <application>Privoxy 3.0.25 beta</application>
- and the previous release:
-</para>
-<para>
- <itemizedlist>
- <listitem>
- <para>
- Bug fixes:
- <itemizedlist>
+ </listitem>
<listitem>
<para>
- Always use the current toggle state for new requests.
- Previously new requests on reused connections inherited
- the toggle state from the previous request even though
- the toggle state could have changed.
- Reported by Robert Klemme.
+ Add a CGI handler for /wpad.dat that returns a
+ Proxy Auto-Configuration (PAC) file.
+ Among other things, it can be used to instruct clients
+ through DHCP to use Privoxy as proxy.
+ For example with the dnsmasq option:
+ dhcp-option=252,http://config.privoxy.org/wpad.dat
+ Initial patch by Richard Schneidt.
</para>
</listitem>
<listitem>
<para>
- Fixed two buffer-overflows in the (deprecated) static
- pcre code. These bugs are not considered security issues
- as the input is trusted.
- Found with afl-fuzz and ASAN.
+ listen_loop(): When shutting down gracefully, close listening ports
+ before waiting for the threads to exit.
+ Allows to start a second Privoxy with the same config file
+ while the first Privoxy is still running.
</para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- General improvements:
- <itemizedlist>
+ </listitem>
<listitem>
<para>
- Added support for client-specific tags which allow Privoxy
- admins to pre-define tags that are set for all requests from
- clients that previously opted in through the CGI interface.
- They are useful in multi-user setups where admins may
- want to allow users to disable certain actions and filters
- for themselves without affecting others.
- In single-user setups they are useful to allow more fine-grained
- toggling. For example to disable request blocking while still
- crunching cookies, or to disable experimental filters only.
- This is an experimental feature, the syntax and behaviour may
- change in future versions.
- Sponsored by Robert Klemme.
+ Allow to edit the add-header action through the CGI editor by
+ generalizing the code that got added with the suppress-tag action.
+ Closes SF patch request #146. Patch by Maxim Antonov.
</para>
</listitem>
<listitem>
<para>
- Dynamic filters and taggers now support a $listen-address variable
- which contains the address the request came in on.
- For external filters the variable is called $PRIVOXY_LISTEN_ADDRESS.
- Original patch contributed by pursievro.
+ process_encrypted_request(): Improve a log message
+ The function only processes request headers and there
+ may still be unread request body data left to process.
</para>
</listitem>
<listitem>
<para>
- Add client-header-tagger 'listen-address'.
+ read_http_request_body(): Fix two error messages that used an incorrect variable.
</para>
</listitem>
<listitem>
<para>
- Include the listen-address in the log message when logging new requests.
- Patch contributed by pursievro.
+ chat(): Log the applied actions before deciding how to forward the request.
</para>
</listitem>
<listitem>
<para>
- Turn invalid max-client-connections values into fatal errors.
+ parse_time_header(): Silence a coverity complaint when building without assertions.
</para>
</listitem>
<listitem>
<para>
- The show-status page now shows whether or not dates before 1970
- and after 2038 are expected to be handled properly.
- This is mainly useful for Privoxy-Regression-Test but could
- also come handy when dealing with time-related support requests.
+ receive_encrypted_request_headers(): Improve a log message
</para>
</listitem>
<listitem>
<para>
- On Mac OS X the thread id in log messages are more likely to
- be unique now.
+ mbedTLS get_ciphersuites_from_string(): Use strlcpy() instead of strncpy().
+ Previously the terminating NUL wasn't copied which resulted
+ in a compiler warning. This didn't cause actual problems as
+ the target buffer was initialized by zalloc_or_die() so the
+ last byte of the target buffer was NUL already.
+ Actually copying the terminating NUL seems clearer, though.
</para>
</listitem>
<listitem>
<para>
- When complaining about missing filters, the filter type is logged
- as well.
+ Remove compiler warnings. "log_error(LOG_LEVEL_FATAL, ..." doesn't return
+ but apparently the compiler doesn't know that.
+ Get rid of several "this statement may fall through [-Wimplicit-fallthrough=]" warnings.
</para>
</listitem>
<listitem>
<para>
- A couple of harmless coverity warnings were silenced
- (CID #161202, CID #161203, CID #161211).
+ If the the response is chunk-encoded, ignore the Content-Length
+ header sent by the server.
+ Allows to load https://redmine.lighttpd.net/ with filtering enabled.
</para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Action file improvements:
- <itemizedlist>
+ </listitem>
+ <listitem>
+ <para>
+ Store the PEM certificate in a dynamically allocated buffer
+ when https-inspecting. Should prevent errors like:
+ 2021-03-16 22:36:19.148 7f47bbfff700 Error: X509 PEM cert len 16694 is larger than buffer len 16383
+ As a bonus it should slightly reduce the memory usage as most
+ certificates are smaller than the previously used fixed buffer.
+ Reported by: Wen Yue
+ </para>
+ </listitem>
<listitem>
<para>
- Filtering is disabled for Range requests to let download resumption
- and Windows updates work with the default configuration.
+ Don't log the applied actions in process_encrypted_request()
+ Log them in continue_https_chat() instead to mirror chat().
+ Prevents the applied actions from getting logged twice
+ for the first request on an https-inspected connection.
</para>
</listitem>
<listitem>
<para>
- Unblock ".ardmediathek.de/".
- Reported by ThTomate in #932.
+ OpenSSL generate_host_certificate(): Use config.privoxy.org as Common Name
+ Org and Org Unit if the real host name is too long to get accepted by OpenSSL.
+ Clients should only care about the Subject Alternative Name
+ anyway and we can continue to use the real host name for it.
+ Reported by Miles Wen on privoxy-users@.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL generate_host_certificate(): Fix two error messsages.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Improve description of handle_established_connection()
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Translate EVP_PKEY_EC to a string.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Remove pointless variable initialization.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Initialize pointer with NULL instead of 0.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Documentation improvements:
+ Action file improvements:
<itemizedlist>
<listitem>
<para>
- Add FAQ entry for crashes caused by memory limits.
+ Disable fast-redirects for .microsoftonline.com/.
</para>
</listitem>
<listitem>
<para>
- Remove obsolete FAQ entry about a bug in PHP 4.2.3.
+ Disable fast-redirects for idp.springer.com/.
</para>
</listitem>
<listitem>
<para>
- Mention the new mailing lists were appropriate.
- As the archives have not been migrated, continue to
- mention the archives at SF in the contacting section
- for now.
+ Disable fast-redirects for .zeit.de/zustimmung
</para>
</listitem>
<listitem>
<para>
- Note that the templates should be adjusted if Privoxy is
- running as intercepting proxy without getting all requests.
+ Unblock adv-archiv.dfn-cert.de/
</para>
</listitem>
<listitem>
<para>
- A bunch of links were converted to https://.
+ Block requests to eu-tlp01.kameleoon.eu/
</para>
</listitem>
<listitem>
<para>
- Rephrase onion service paragraph to make it more obvious
- that Tor is involved and that the whole website (and not
- just the homepage) is available as onion service.
+ Block requests to fpa-events.arstechnica.com/
</para>
</listitem>
<listitem>
<para>
- Streamline the "More information" section on the homepage further
- by additionally ditching the link to the 'See also' section
- of the user manual. The section contains mostly links that are
- directly reachable from the homepage already and the rest is
- not significant enough to get a link from the homepage.
+ Unblock nlnet.nl/.
</para>
</listitem>
<listitem>
<para>
- Change the add-header{} example to set the DNT header
- and use a complete section to make copy and pasting
- more convenient.
- Add a comment to make it obvious that adding the
- header is not recommended for obvious reasons.
- Using the DNT header as example was suggested by
- Leo Wzukw.
+ Unblock adguard.com/.
</para>
- </listitem>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Privoxy-Log-Parser:
+ <itemizedlist>
<listitem>
<para>
- Streamline the support-and-service template
- Instead of linking to the various support trackers
- (whose URLs hopefully change soon), link to the
- contact section of the user manual to increase the
- chances that users actually read it.
+ Highlight 'Socket timeout 3 reached: http://127.0.0.1:20000/no-filter/chunked-content/36'
</para>
</listitem>
<listitem>
<para>
- Add a FAQ entry for tainted sockets.
+ Improve documentation for inactivity-detection mode
</para>
</listitem>
<listitem>
<para>
- More sections in the documentation have stable URLs now.
+ Detect date changes when looking for inactivity
</para>
</listitem>
<listitem>
<para>
- FAQ: Explain why 'ping config.privoxy.org' is not expected
- to reach a local Privoxy installation.
+ Add a --passed-request-statistics-threshold option
+ That can be set to get statistics for requests that
+ were passed.
</para>
</listitem>
<listitem>
<para>
- Note that donations done through Zwiebelfreunde e.V. currently
- can't be checked automatically.
+ Add a "inactivity detection" mode
+ Which can be useful for debugging purposes.
</para>
</listitem>
<listitem>
<para>
- Updated section regarding starting Privoxy under OS X.
+ Bump version to 0.9.4
</para>
</listitem>
<listitem>
<para>
- Use dedicated start instructions for FreeBSD and ElectroBSD.
+ Only run print_intro() and print_outro() when syntax highlighting
</para>
</listitem>
<listitem>
<para>
- Removed release instructions for AIX. They haven't been working
- for years and unsurprisingly nobody seems to care.
+ Rephrase a sentence in the documentation
</para>
</listitem>
<listitem>
<para>
- Removed obsolete reference to the solaris-dist target.
+ Highlight 'Client socket 7 is no longer usable. The server socket has been closed.'
</para>
</listitem>
<listitem>
<para>
- Updated the release instructions for FreeBSD.
+ Clarify --statistics output
+ by explicitly mentioning that the status codes
+ sent by the server may differ from the ones in
+ "debug 512" messages.
</para>
</listitem>
<listitem>
<para>
- Removed unfinished release instructions for Amiga OS and HP-UX 11.
+ Fix typo in the --statistics output
</para>
</listitem>
<listitem>
<para>
- Added a pointer to the Cygwin Time Machine for getting the last release of
- Cygwin version 1.5 to use for building Privoxy on Windows.
+ Remove an unused variable
</para>
</listitem>
<listitem>
<para>
- Various typos have been fixed.
+ Highlight 'The peer notified us that the connection on socket 11 is going to be closed'
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Infrastructure improvements:
+ Privoxy-Regression-Test:
<itemizedlist>
<listitem>
<para>
- The website is no longer hosted at SourceForge and
- can be reached through https now.
+ Remove duplicated word in a comment.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ regression-tests.action:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Add fetch test for http://p.p/wpad.dat.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump for-privoxy-version to 3.0.33 which introduced the wpad.dat support.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add more tests for the '/send-banner' code.
</para>
</listitem>
<listitem>
<para>
- The mailing lists at SourceForge have been deprecated,
- you can subscribe to the new ones at: https://lists.privoxy.org/
+ Add test for OVE-20210203-0001.
</para>
</listitem>
<listitem>
<para>
- Migrating the remaining services from SourceForge is
- work in progress (TODO list item #53).
+ Add a test for CVE-2021-20217.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Build system improvements:
+ uagen:
<itemizedlist>
<listitem>
<para>
- Add configure argument to optimistically redefine FD_SETSIZE
- with the intent to change the maximum number of client
- connections Privoxy can handle. Only works with some libcs.
- Sponsored by Robert Klemme.
+ Bump generated Firefox version to 91 (ESR)
</para>
</listitem>
<listitem>
<para>
- Let the tarball-dist target skip files in ".git".
+ Bump version to 1.2.3
</para>
</listitem>
<listitem>
<para>
- Let the tarball-dist target work in cwds other than current.
+ Bump copyright
</para>
- </listitem>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Build system:
+ <itemizedlist>
<listitem>
<para>
- Make the 'clean' target faster when run from a git repository.
+ configure: Bump SOURCE_DATE_EPOCH.
</para>
</listitem>
<listitem>
<para>
- Include tools in the generic distribution.
+ GNUmakefile.in: Fix typo.
</para>
</listitem>
<listitem>
<para>
- Let the gen-dist target work in cwds other than current.
+ configure: Add another warning in case --disable-pthread is used
+ while POSIX threads are available.
+ Various features don't even compile when not using threads.
</para>
</listitem>
<listitem>
<para>
- Sort find output that is used for distribution tarballs
- to get reproducible results.
+ Add configure option to enable MemorySanitizer.
</para>
</listitem>
<listitem>
<para>
- Don't add '-src' to the name of the tar ball generated by the
- gen-dist target. The package isn't a source distribution but a
- binary package.
- While at it, use a variable for the name to reduce the chances
- that the various references get out of sync and fix the gen-upload
- target which was looking in the wrong directory.
+ Add configure option to enable UndefinedBehaviorSanitizer.
</para>
</listitem>
<listitem>
<para>
- Add regression-tests.action to the files that are distributed.
+ Add configure option to enable AddressSanitizer.
</para>
</listitem>
<listitem>
<para>
- The gen-dist target which was broken since 2002 (r1.92) has been fixed.
+ Bump copyright
</para>
</listitem>
<listitem>
<para>
- Remove genclspec.sh which has been obsolete since 2009.
+ Add a configure option to disable pcre JIT compilation.
+ While JIT compilation makes filtering faster it can
+ cause false-positive valgrind complaints.
+ As reported by Gwyn Ciesla in SF bug 924 it also can
+ cause problems when the SELinux policy does not grant
+ Privoxy "execmem" privileges.
</para>
</listitem>
<listitem>
<para>
- Remove obsolete reference to Redhat spec file.
+ configure: Remove obsolete RPM_BASE check
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Windows build system:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Update the build script to use mbed tls version 2.6.11.
</para>
</listitem>
<listitem>
<para>
- Remove the obsolete announce target which has been commented out years ago.
+ Update build script to use the final 8.45 pcre library.
</para>
</listitem>
<listitem>
<para>
- Let rsync skip files if the checksums match.
+ Put all the '--enable-xxx' options in the configure call together.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Privoxy-Regression-Test:
+ Documentation:
<itemizedlist>
<listitem>
<para>
- Add a "Default level offset" directive which can be used to
- change the default level by a given value.
- This directive affects all tests located after it until the end
- of the file or a another "Default level offset" directive is reached.
- The purpose of this directive is to make it more convenient to skip
- similar tests in a given file without having to remove or disable
- the tests completely.
+ contacting: Remove obsolete reference to announce.sgml.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ contacting: Request that the browser cache is cleared before
+ producing a log file for submission.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Sponsor FAQ: Note that Privoxy users may follow sponsor links
+ without Referer header set.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ newfeatures: Clarify that https inspection also allows to
+ filter https responses.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ developer-manual: Mention that announce.txt should be updated
+ when doing a release.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ config: Explicitly mention that the CGI pages disclosing the
+ ca-password can be blocked and upgrade the disclosure paragraphs
+ to a warning.
</para>
</listitem>
<listitem>
<para>
- Let test level 17 depend on FEATURE_64_BIT_TIME_T
- instead of FEATURE_PTHREAD which has no direct connection
- to the time_t size.
+ Put all the requested debug options in the config file.
+ Section 11.1 of the Privoxy user manual lists all the debug
+ options that should be enabled when reporting problems or requesting support.
+ Make it easier for users to do the right thing by having all those
+ options present in the config.
</para>
</listitem>
<listitem>
<para>
- Fix indentation in perldoc examples.
+ Update TODO list item #184 to note that WolfSSL support will
+ (hopefully) appear after the 3.0.34 release
</para>
</listitem>
<listitem>
<para>
- Don't overlook directives in the first line of the action file.
+ Update max-client-connections's description.
+ On modern systems other than Windows Privoxy should
+ use poll() in which case the FD_SETSIZE value isn't
+ releveant.
</para>
</listitem>
<listitem>
<para>
- Bump version to 0.7.
+ Add a warning that the socket-timeout does not apply
+ to operations done by TLS libraries
</para>
</listitem>
<listitem>
<para>
- Fix detection of the Privoxy version now that https://
- is used for the website.
+ Make documentation slightly less "offensive" for some people
+ by avoiding the word "hell".
</para>
</listitem>
</itemizedlist>