--------------------------------------------------------------------
ChangeLog for Privoxy
--------------------------------------------------------------------
+*** Version 3.0.32 stable ***
+
+- Bug fixes:
+ - Properly parse the client-tag-lifetime directive. Previously it was
+ not accepted as an obsolete hash value was being used.
+ Reported by: Joshua Rogers (Opera)
+ - decompress_iob(): Prevent reading of uninitialized data.
+ Reported by: Joshua Rogers (Opera).
+ - decompress_iob(): Don't advance cur past eod when looking
+ for the end of the file name and comment.
+ - decompress_iob(): Cast value to unsigned char before shifting.
+ Prevents a left-shift of a negative value which is undefined behaviour.
+ Reported by: Joshua Rogers (Opera)
+ - gif_deanimate(): Confirm that that we have enough data before doing
+ any work. Fixes a crash when fuzzing with an empty document.
+ Reported by: Joshua Rogers (Opera).
+ - buf_copy(): Fail if there's no data to write or nothing to do.
+ Prevents undefined behaviour "applying zero offset to null pointer".
+ Reported by: Joshua Rogers (Opera)
+ - log_error(): Treat LOG_LEVEL_FATAL as fatal even when --stfu is
+ being used while fuzzing.
+ Reported by: Joshua Rogers (Opera).
+ - Respect DESTDIR when considering whether or not to install
+ config files with ".new" extension.
+ - OpenSSL ssl_store_cert(): Fix two error messages.
+ - Fix a couple of format specifiers.
+ - Silence compiler warnings when compiling with NDEBUG.
+ - fuzz_server_header(): Fix compiler warning.
+ - fuzz_client_header(): Fix compiler warning.
+ - cgi_send_user_manual(): Also reject requests if the user-manual
+ directive specifies a https:// URL. Previously Privoxy would try and
+ fail to open a local file.
+
+- General improvements:
+ - Log the TLS version and the the cipher when debug 2 is enabled..
+ - configure.in: Add a warning that the obsolete pcre code is scheduled
+ to be removed before the 3.0.33 release. There has been a warning since
+ since 2008 already.
+ - ssl_send_certificate_error(): Respect HEAD requests by not sending a body.
+ - ssl_send_certificate_error(): End the body with a single new line.
+ - serve(): Increase the chances that the host is logged when closing
+ a server socket.
+ - handle_established_connection(): Add parentheses to clarify an expression
+ Suggested by: David Binderman
+ - continue_https_chat(): Explicitly unset CSP_FLAG_CLIENT_CONNECTION_KEEP_ALIVE
+ if process_encrypted_request() fails. This makes it more obvious that the
+ connection will not be reused. Previously serve() relied on
+ CSP_FLAG_SERVER_CONTENT_LENGTH_SET and CSP_FLAG_CHUNKED being unset.
+ Inspired by a patch from Joshua Rogers (Opera).
+ - decompress_iob(): Add periods to a couple of log messages
+ - Terminate the body of the HTTP snipplets with a single new line
+ instead of "\r\n".
+ - configure: Add --with-assertions option and only enable assertions
+ when it is used
+ - windows build: Use --with-brotli and --with-mbedtls by default and
+ enable dynamic error checking.
+ - gif_deanimate(): Confirm we've got an image before trying to write it
+ Saves a pointless buf_copy() call.
+
+- Action file improvements:
+ - Disable fast-redirects for .golem.de/
+ - Unblock requests to adri*.
+ - Block requests for trc*.taboola.com/
+ - Disable fast-redirects for .linkedin.com/
+
+- Filter file improvements:
+ - Make the second pcrs job of the img-reorder filter greedy again.
+ The ungreedy version broke the img tags on:
+ https://bulk.fefe.de/scalability/.
+
+- Privoxy-Log-Parser:
+ - Highlight a few more messages.
+
+- Privoxy-Regression-Test:
+ - Add the --check-bad-ssl option to the --help output.
+ - Bump version to 0.7.3.
+
+- Documentation:
+ - Add pushing the created tag to the release steps in the developer manual.
+
+*** Version 3.0.31 stable ***
+
+- Security/Reliability:
+ - Prevent an assertion from getting triggered by a crafted CGI request.
+ Commit 5bba5b89193fa. OVE-20210130-0001. CVE-2021-20217.
+ Reported by: Joshua Rogers (Opera)
+ - Fixed a memory leak when decompression fails "unexpectedly".
+ Commit f431d61740cc0. OVE-20210128-0001. CVE-2021-20216.
+
+- Bug fixes:
+ - Fixed detection of insufficient data for decompression.
+ Previously Privoxy could try to decompress a partly
+ uninitialized buffer.
+
+*** Version 3.0.30 stable ***
+
+- Bug fixes:
+ - Check the actual URL for redirects when https inspecting requests.
+ Previously Privoxy would only check the path which resulted in
+ rewrite results being rejected as invalid URLs.
+ Reported by withoutname in #1736.
+ - Let the hide-referrer code tolerate Referer headers with https:// URLs.
+ Previously they would always be treated like a changed host.
+ - Use the https headers if the show-request handler is reached through
+ https://. Previously Privoxy would use the http headers which
+ may be empty on a reused connection.
+ - Make CGI_PREFIX protocol-relative when building with FEATURE_HTTPS_INSPECTION.
+ This unbreaks (at least) https://config.privoxy.org/client-tags whose
+ buttons would previously use a http:// URL resulting in browser warnings.
+ - Support using https-inspection and client-header-order at the same time.
+ Previously Privoxy would crash.
+ Reported by: Kai Raven
+ - Properly reject rewrites from http to https as they currently
+ aren't supported. Previously Privoxy would wait for the client
+ to establish an encrypted connection which obviously would not happen.
+ - When https inspection is enabled and Privoxy has been compiled with
+ FEATURE_GRACEFUL_TERMINATION (not recommended for production builds),
+ the TLS backend resources are free'd later on and only if no active
+ connections are left. Prevents crashes when exiting "gracefully" at the
+ wrong time.
+ - Let the uninstall target remove the config file even if DESTDIR
+ is set and properly announce the deletion of the configuration files.
+
+- General improvements:
+ - Allow to rewrite the request destination for https-inspected
+ requests behind the client's back. The documentation already sort
+ of claimed that it was supported by not especially mentioning that
+ it didn't work for https-inspected requests.
+ Fixes SF bug #923 reported by withoutname.
+ - Add support for filtering client request bodies by using
+ CLIENT-BODY-FILTER filters which can be enabled with the
+ client-body-filter action.
+ Patch submitted by Maxim Antonov.
+ Sponsored by: Robert Klemme
+ - Add the new action suppress-tag{} which can be used to prevent
+ a tagger from adding a tag. Patch submitted by Maxim Antonov.
+ Sponsored by: Robert Klemme
+ - Gracefully handle existing website keys without matching certificates.
+ This can happen if Privoxy was previously running with an invalid
+ TLS configuration that didn't allow it to create a certificate.
+ - Recycle debug bit 4 for Tagging-related messages.
+ - Improve the message shown when the client-tags CGI page
+ is requested with no tags configured.
+ - Shorten the 'donate' and 'participate' links used by templates
+ using redirects. Currently the redirects lead to the FAQ entries
+ but in the future we may want to relocate the content and using
+ redirects makes this more convenient.
+ - Log an error when a PCRE-HOST-PATTERN is used with
+ FEATURE_PCRE_HOST_PATTERNS disabled. Don't treat this a
+ fatal error so the regression tests can be used with and
+ without FEATURE_PCRE_HOST_PATTERNS.
+ - The code compiles with older C compilers again.
+ - The chdir() return code is checked to fix a compiler warning.
+ - The packages feed has been removed from the source tarball.
+ It's usually out of date when the source tarball is generated
+ for the release.
+ - Fixed harmless compiler warnings from GCC9 with -D_FORTIFY_SOURCE=2.
+ - windows: Remove obsolete '$(DEST)/doc/images' target.
+ - windows: Install the images referenced in the user manual.
+ - Remove obsolete 'gnu_regex.@OBJEXT@' target.
+ - When installing from the GNUMAkefile, don't create an 'images'
+ directory which is no longer used. The images were relocated to
+ the user-manual directory years ago.
+ - Add new FEATURES to the show-status page and resort list.
+ - Remove unused variable in the OpenSSL-specific code.
+ - Update bug tracker URL in cgi_error_unknown().
+ - Saved a couple of memory allocations when sorting client headers.
+ - Improved a couple of error messages.
+ - Saved memory allocations when using OpenSSL and checking if a
+ key already exists.
+ - The configure script will bail out if OpenSSL and mbedTLS are
+ enabled at the same time.
+ - Log a message right before exiting gracefully.
+ - A couple of structures have been rearranged to require slightly
+ less memory.
+ - When https inspection is enabled and the certificate is invalid
+ the error message is now sent with status code 403 instead of 200.
+ - The Slackware rc script template has been renamed to
+ slackware/rc.privoxy.in to silence complaints when building
+ Debian packages.
+ - When building with MbedTLS support, mbedtls_md5_ret() is used
+ instead of mbedtls_md5() which is deprecated and causes a warning
+ on Debian GNU/Linux.
+
+- Action file improvements:
+ - Block requests to eu-tlp03.kameleoon.com/.
+ - Unblock metrics.sr.ht/.
+ - Disable fast-redirects for .fsf.org/.
+ - Disable fast-redirects for .gravater.com/.
+ - Disable fast-redirects for .ksta.de/.
+ - Block requests to tag.crsspxl.com/.
+ - Block requests to analytics.slashdotmedia.com/.
+ - Block requests to ml314.com/.
+ - Block requests to .adroll.com/.
+ - Block requests to fastlane.rubiconproject.com/.
+ - Block requests to api.theadex.com/.
+ - Block requests to ih.adscale.de/.
+ - Block requests to .s400.meetrics.net/.
+ - Block requests for pp.lp4.io/.
+ - Block requests for trc-events.taboola.com/.
+
+- Filter file improvements:
+ - A allow-autocompletion filter has been added which changes
+ autocomplete="off" to "on" on input fields to allow autocompletion.
+ Requested by Jamie Zawinski in #370.
+ Filter based on a submission by Aaron Linville.
+ - Added an imdb filter.
+ - Added a sourceforge filter that reduces the amount of ads
+ for proprietary software.
+ - Added a github filter that removes the annoying "Sign-Up"
+ banner and the Cookie disclaimer.
+ - Removed a duplicated pcrs command from the js-annoyances filter.
+ - The crude-parental filter now provides a short reason when blocking,
+ inserts a link to Privoxy's webinterface and adds a new line at
+ the end of the generated page.
+
+- Privoxy-Log-Parser:
+ - Highlight a few more messages.
+ - Add a handler for tagging messages.
+ - Properly deal with 'Certificate error' crunches
+ Previously the error description was highlighted as 'host'.
+ - Log truncated LOG_LEVEL_CLF messages more gracefully
+ and note that the statistics will be imprecise.
+ - Fixed perldoc typo.
+ - Bump version to 0.9.2.
+
+- Privoxy-Regression-Test:
+ - Use http://127.0.0.1:8118/ as default Privoxy address
+ unless http_proxy is set through the environment.
+ - Add a --privoxy-cgi-prefix option that specifies the prefix
+ to use when building URLs that are supposed to reach Privoxy's
+ CGI interface. If it's not set, http://p.p/ is used, which is
+ supposed to work with the default Privoxy configuration.
+ If Privoxy has been built with FEATURE_HTTPS_INSPECTION enabled,
+ and if https inspection is activated with the +https-inspection
+ action, this option can be used with "https://p.p/" provided the
+ system running Privoxy-Regression-Test has been configured to
+ trust the certificate used by Privoxy.
+ Note that there are currently two tests in the official
+ regression-tests.action file that are expected to fail
+ when using "https://p.p/" as privoxy-cgi-prefix.
+ - Skip the connection-established response in get_status_code()
+ when looking for the status code with a CGI prefix
+ that starts with https://. We care about the status code
+ sent by the impersonated web server.
+ - Use --proxy-header when using a CGI prefix with https://
+ and a "Host:" header.
+ - Allow '|' in tokens and values to allow tag patterns like
+ "TAG:^(application|text)/(x-)?javascript$".
+ - When get_cgi_page_or_else() fails, include the URL of the
+ requested page in the log message.
+ - Added a --check-bad-ssl option that can be used to verify that
+ Privoxy detects certificate problems when accessing the test
+ sites from badssl.com.
+ - Bumped version to 0.7.2
+
+- uagen:
+ - Update example output.
+ - Recommend the use of the https-inspection action in the documentation.
+ - Upgrade a couple of URLs to https://.
+ - Add ElectroBSD to the list of operating systems.
+ - Bumped generated Firefox version to 78 (ESR).
+ - Bumped version to 1.2.2.
+
+ - User documentation:
+ - Remove reference to 'How to Report Bugs Effectively'.
+ It was only rendered as text without URL in the README anyway
+ and there's no indication that users read it ...
+ - Let the dok-readme target fix the location embedded into the
+ README file. This used to be done by CVS but since the git migration
+ it has to be done through other means.
+ - Remove 'experimental' warning for client-specific-tag-related directives.
+ They seem to work reliably and there is no obvious reason
+ why we would change the syntax in the near future.
+ - Describe how to check if Privoxy has been built with
+ FEATURE_HTTPS_INSPECTION.
+ - Add a link to the trusted-cas-file documentation
+ that explains how the user can create the file herself.
+ - Don't explicitly mention the license for the code coming from
+ 'Anonymous Coders' and Junkbusters. It's obviously licensed under
+ the GNU GPL like the rest of Privoxy or we wouldn't be allowed to
+ distribute it.
+ - Update the +hide-user-agent example with uagen output.
+ - Slightly improve the wording of the ca-key-file documentation.
+ - Explicitly mention Windows 10 as supported so search engines and
+ users looking for it can find it.
+ - Import a bunch of contributors from the ChangeLog.
+ - Remove obsolete doc/gpl.html.
+ - Upgrade a couple of links to https://.
+ - Don't prefer the SourceForge patch tracker over the
+ privoxy-devel mailing list. While at it, link to the
+ SourceForge patch tracker.
+ - Mention http-inspection in the 'my browser warns me about
+ unauthenticated content' FAQ entry.
+ - Simplify the 'Is there is a license or fee?' FAQ entry.
+ - Add another +redirect{} example.
+ - Explicitly mention that interested sponsors should include
+ the link target in their first mail.
+ - Clarify that only Privoxy team members can object to new sponsors
+ and link to the list of current team members.
+ - Note that sponsor URLs may not contain keyword spam.
+ - Garbage collect doc/webserver/images which isn't referenced anymore.
+ - Update the method to reach the proxy settings in Firefox.
+ - Update proxy_setup.jpg description to refer to Firefox.
+ - Regenerate proxy_setup.jpg with a more recent Firefox (78.0).
+ - Regenerate files-in-use.jpg without obsolete standard.action
+ with modern colors and a slightly better quality.
+ - Update URL to the actionsfile tracker.
+ - Update a support request URL.
+ - Rephrase the 'Can Privoxy run as service' FAQ entry and
+ remove an obsolete paragraph.
+ - Let the 'Where can I get updated Actions Files?' entry link to
+ the gitweb version of default.action.master.
+ - Update a link to the default.action file.
+ - Update URLs for trackers and mailing lists.
+ - Replace CVS reference with git.
+ - Mention regression-tests.action in the config file.
+ - Explicitly mention in the config file that access to the
+ CA key should be limited to Privoxy.
+ - List more client-specific-tag examples for inspiration.
+ - Add additional headers to the client-header-order example.
+ - Note that actions aren't updated after rewrites.
+ - Explicitly mention that upgrading from http to https with
+ a client-header filter is not supported
+ - Note that protocol and host have to be added when rewriting
+ the destination host for https-inspected requests.
+ - Explicitly mention that the CA key is used to sign certificates.
+ - Put openssl command in 'command' tags.
+ - The man page has been moved from section 1 to man section 8.
+
+- Developer manual:
+ - Flesh out the build instructions for Debian.
+ - Remove the packaging instructions for RPM-based systems.
+ They don't work and we don't release RPM packages anymore anyway.
+ - Remove the packaging instructions for Solaris.
+ They don't work and we don't release Solaris packages anymore anyway.
+ - Update the suggested subject for the announce mails.
+ - Update upload instructions.
+ ftp://upload.sourceforge.net is no longer functional.
+ - Remove a couple of package-dependent upload instructions
+ that don't actually work.
+ - Remove 'cd current' that no longer works.
+ - Add regression-tests.action to the list of files that should be installed.
+ - Stop claiming that there are text versions of the manuals.
+ We stopped building them in 2008 (9ed36a3c5e6f12).
+ - Note that the 'webserver' target creates the link needed for the user-manual.
+ - Suggest to use the master branch as reference when creating
+ the ChangeLog so the steps work when the current branch differs
+ from master which is likely as the developer manual
+ suggests to use a local branch for development.
+ - Add the -s flag to the suggested 'git tag' command. We prefer signed tags.
+ - Mention that merges into 'master' should be avoided.
+ - Add git commands that should result in a merge-free history.
+ - Mention Privoxy-Regression-Test.
+ - Add a section id to reduce link churn.
+ - Recommend the dok-tidy target when building docs for the webserver.
+ - Add another plug for the privoxy-devel mailing list.
+ - Let the intro link the copyright section in the user manual instead
+ of giving an incomplete summary of the license status.
+ - Clarify that the webserver target uploads to the SourceForge webserver.
+ - Mark the documentation for the Mac OS X installers as out of date and
+ change the SCM name back to CVS.
+ - Fix the location of the installer modules for Mac OS X.
+ They are not actually available through git (yet).
+ - Don't speak of Privoxy version 3 in the past tense.
+ - Update the list of programs required for the release process.
+ - Update description of the webserver target which uses ssh, not scp.
+ - Remove obsolete reference to config.new.
+
+- Tests:
+ - Add another hide-referrer{conditional-block} test.
+ - Add another hide-referrer{conditional-forge} test.
+ - Fix a hide-referrer{conditional-forge} test
+ that expected an acceptable header to be forged.
+ - Fix a hide-referrer{conditional-block} test
+ that expected an acceptable Referer to be removed.
+ - Explain why the "Set Header = Host: whatever.example.org" test is
+ expected to fail when using a CGI prefix that starts with "https://".
+ - Explain why a connection-sharing test is known to fail
+ when using "https://p.p/" as CGI prefix.
+ - Add a link to Privoxy-Regression-Test to regression-tests.action
+ in case it isn't packaged.
+ - Add regression tests for pcre host patterns.
+ - Fixed a regression test that is executed when
+ FEATURE_GRACEFUL_TERMINATION is enabled.
+
+- Privoxy infrastructure:
+ - Import a Privoxy logo for the website.
+ - Update Tor onion service to HiddenServiceVersion 3.
+ - Display the "model" photos in a single row and remove placeholder images.
+ - Regenerate homepage with updated sponsor list.
+ - Use the '/sponsor' redirect for the link to the sponsor page.
+ - Git commit messages are sent to the Privoxy-commits mailing list.
+
*** Version 3.0.29 stable ***
- Security/Reliability:
- Fixed memory leaks when a response is buffered and the buffer
limit is reached or Privoxy is running out of memory.
Commits bbd53f1010b and 4490d451f9b. OVE-20201118-0001.
+ CVE-2020-35502.
Sponsored by: Robert Klemme
- Fixed a memory leak in the show-status CGI handler when
no action files are configured. Commit c62254a686.
- OVE-20201118-0002.
+ OVE-20201118-0002. CVE-2021-20209.
Sponsored by: Robert Klemme
- Fixed a memory leak in the show-status CGI handler when
no filter files are configured. Commit 1b1370f7a8a.
- OVE-20201118-0003.
+ OVE-20201118-0003. CVE-2021-20210.
Sponsored by: Robert Klemme
- Fixes a memory leak when client tags are active.
- Commit 245e1cf32. OVE-20201118-0004.
+ Commit 245e1cf32. OVE-20201118-0004. CVE-2021-20211.
Sponsored by: Robert Klemme
- Fixed a memory leak if multiple filters are executed
and the last one is skipped due to a pcre error.
- Commit 5cfb7bc8fe. OVE-20201118-0005.
+ Commit 5cfb7bc8fe. OVE-20201118-0005. CVE-2021-20212.
- Prevent an unlikely dereference of a NULL-pointer that
could result in a crash if accept-intercepted-requests
was enabled, Privoxy failed to get the request destination
from the Host header and a memory allocation failed.
- Commit 7530132349. CID 267165. OVE-20201118-0006.
+ Commit 7530132349. CID 267165. OVE-20201118-0006. CVE-2021-20213.
- Fixed memory leaks in the client-tags CGI handler when
client tags are configured and memory allocations fail.
- Commit cf5640eb2a. CID 267168. OVE-20201118-0007.
+ Commit cf5640eb2a. CID 267168. OVE-20201118-0007. CVE-2021-20214.
- Fixed memory leaks in the show-status CGI handler when memory
allocations fail. Commit 064eac5fd0 and commit fdee85c0bf3.
- CID 305233. OVE-20201118-0008.
+ CID 305233. OVE-20201118-0008. CVE-2021-20215.
- General improvements:
- Added experimental https inspection support which allows to filter
----------------------------------------------------------------------
-Copyright : Written by and Copyright (C) 2001-2020 the
+Copyright : Written by and Copyright (C) 2001-2021 the
Privoxy team. https://www.privoxy.org/
Based on the Internet Junkbuster originally written