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ChangeLog for Privoxy
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-*** Version 3.0.30 UNRELEASED ***
+*** 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.
- 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-intercepted
+ - 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.
fatal error so the regression tests can be used with and
without FEATURE_PCRE_HOST_PATTERNS.
- The code compiles with older C compilers again.
- - Check the chdir() return code to fix a compiler warning.
- - Let the crude-parental filter insert a link to Privoxy's webinterface.
- - Remove the packages feed from the source tarball.
+ - 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.
- - Fix harmless compiler warnings from GCC9 with -D_FORTIFY_SOURCE=2.
+ - 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.
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.
- - OpenSSL create_client_ssl_connection(): Remove unused variable.
+ - 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/.
- - Disable fast-redirects for secure.gravatar.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/.
-- privoxy-log-parser:
- - Highlight 'Rewritten request line results in downgrade to http'.
- - Highlight 'Rewrite detected: ...' messages again.
+- 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
+- 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
"TAG:^(application|text)/(x-)?javascript$".
- When get_cgi_page_or_else() fails, include the URL of the
requested page in the log message.
- - privoxy-regression-test: Bump version to 0.7.2
+ - 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.
- - Bump generated Firefox version to 78 (ESR).
- - Bump version to 1.2.2.
+ - Bumped generated Firefox version to 78 (ESR).
+ - Bumped version to 1.2.2.
- - User Documentation:
+ - 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 ...
- 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.
+ 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:
- - Mention the directory from which to execute the commands to
- create Debian packages.
+- 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 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.
- - Put openssl command in 'command' tags.
- Update description of the webserver target which uses ssh, not scp.
- Remove obsolete reference to config.new.
- 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:
+- 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.
- 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