- Announcing Privoxy 3.0.24 stable
+ Announcing Privoxy 3.0.29 stable
--------------------------------------------------------------------
-Privoxy 3.0.24 stable contains a couple of new features but is
-mainly a bug-fix release. Two of the fixed bugs are security issues
-(CVE requests pending) and may be used to remotely trigger crashes
-on platforms that carefully check memory accesses (most don't).
+Privoxy 3.0.29 stable fixes a couple of memory leaks and introduces
+https inspection which allows to filter encrypted requests and
+responses.
--------------------------------------------------------------------
-ChangeLog for Privoxy
+ChangeLog for Privoxy 3.0.29
--------------------------------------------------------------------
-- Security fixes (denial of service):
- - Prevent invalid reads in case of corrupt chunk-encoded content.
- Bug discovered with afl-fuzz and AddressSanitizer.
- - Remove empty Host headers in client requests.
- Previously they would result in invalid reads.
- Bug discovered with afl-fuzz and AddressSanitizer.
-
-- Bug fixes:
- - When using socks5t, send the request body optimistically as well.
- Previously the request body wasn't guaranteed to be sent at all
- and the error message incorrectly blamed the server.
- Fixes #1686 reported by Peter Müller and G4JC.
- - Fixed buffer scaling in execute_external_filter() that could lead
- to crashes. Submitted by Yang Xia in #892.
- - Fixed crashes when executing external filters on platforms like
- Mac OS X. Reported by Jonathan McKenzie on ijbswa-users@
- - Properly parse ACL directives with ports when compiled with HAVE_RFC2553.
- Previously the port wasn't removed from the host and in case of
- 'permit-access 127.0.0.1 example.org:80' Privoxy would try (and fail)
- to resolve "example.org:80" instead of example.org.
- Reported by Pak Chan on ijbswa-users@.
- - Check requests more carefully before serving them forcefully
- when blocks aren't enforced. Privoxy always adds the force token
- at the beginning of the path, but would previously accept it anywhere
- in the request line. This could result in requests being served that
- should be blocked. For example in case of pages that were loaded with
- force and contained JavaScript to create additionally requests that
- embed the origin URL (thus inheriting the force prefix).
- The bug is not considered a security issue and the fix does not make
- it harder for remote sites to intentionally circumvent blocks if
- Privoxy isn't configured to enforce them.
- Fixes #1695 reported by Korda.
- - Normalize the request line in intercepted requests to make rewriting
- the destination more convenient. Previously rewrites for intercepted
- requests were expected to fail unless $hostport was being used, but
- they failed "the wrong way" and would result in an out-of-memory
- message (vanilla host patterns) or a crash (extended host patterns).
- Reported by "Guybrush Threepwood" in #1694.
- - Enable socket lingering for the correct socket.
- Previously it was repeatedly enabled for the listen socket
- instead of for the accepted socket. The bug was found by
- code inspection and did not cause any (reported) issues.
- - Detect and reject parameters for parameter-less actions.
- Previously they were silently ignored.
- - Fixed invalid reads in internal and outdated pcre code.
- Found with afl-fuzz and AddressSanitizer.
- - Prevent invalid read when loading invalid action files.
- Found with afl-fuzz and AddressSanitizer.
- - Windows build: Use the correct function to close the event handle.
- It's unclear if this bug had a negative impact on Privoxy's behaviour.
- Reported by Jarry Xu in #891.
- - In case of invalid forward-socks5(t) directives, use the
- correct directive name in the error messages. Previously they
- referred to forward-socks4t failures.
- Reported by Joel Verhagen in #889.
+
+- 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.
+ 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.
+ 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.
+ Sponsored by: Robert Klemme
+ - Fixes a memory leak when client tags are active.
+ Commit 245e1cf32. OVE-20201118-0004.
+ 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.
+ - 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.
+ - 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.
+ - Fixed memory leaks in the show-status CGI handler when memory
+ allocations fail. Commit 064eac5fd0 and commit fdee85c0bf3.
+ CID 305233. OVE-20201118-0008.
- General improvements:
- - Set NO_DELAY flag for the accepting socket. This significantly reduces
- the latency if the operating system is not configured to set the flag
- by default. Reported by Johan Sintorn in #894.
- - Allow to build with mingw x86_64. Submitted by Rustam Abdullaev in #135.
- - Introduce the new forwarding type 'forward-webserver'.
- Currently it is only supported by the forward-override{} action and
- there's no config directive with the same name. The forwarding type
- is similar to 'forward', but the request line only contains the path
- instead of the complete URL.
- - The CGI editor no longer treats 'standard.action' special.
- Nowadays the official "standards" are part of default.action
- and there's no obvious reason to disallow editing them through
- the cgi editor anyway (if the user decided that the lack of
- authentication isn't an issue in her environment).
- - Improved error messages when rejecting intercepted requests
- with unknown destination.
- - A couple of log messages now include the number of active threads.
- - Removed non-standard Proxy-Agent headers in HTTP snipplets
- to make testing more convenient.
- - Include the error code for pcre errors Privoxy does not recognize.
- - Config directives with numerical arguments are checked more carefully.
- - Privoxy's malloc() wrapper has been changed to prevent zero-size
- allocations which should only occur as the result of bugs.
- - Various cosmetic changes.
+ - Added experimental https inspection support which allows to filter
+ https traffic. To enable it, install MbedTLS and configure with
+ --with-mbedtls, or install OpenSSL or LibreSSL and configure
+ with --with-openssl.
+ Afterwards configure the directives in section 7 of the
+ config file and enable the +https-inspection action.
+ Initial MbedTLS-based code contributed by Vaclav Svec,
+ initial OpenSSL support contributed by Maxim Antonov.
+ With help from Nedzad Hrnjica and Ho+ Ho+ Ho+.
+ Integration and improvements sponsored by Robert Klemme.
+ - pcrs: Request JIT compilation if it's supported and
+ the filter isn't dynamic. This can speed up filtering.
+ - Added support for Brotli decompression.
+ Sponsored by: Robert Klemme
+ - Added FEATURE_EXTENDED_STATISTICS to gather statistics for
+ block reasons and filter executions. To enable it, configure
+ with --enable-extended-statistics and visit
+ http://config.privoxy.org/show-status.
+ Sponsored by: Robert Klemme
+ - Use the IP_FREEBIND socket option, if defined. This allows
+ Privoxy to bind to not-yet assigned IP addresses which is
+ useful in failover environments.
+ Patch by Sam Varshavchik.
+ - Allow to use extended host patterns and vanilla host patterns
+ at the same time by prefixing extended host patterns with
+ "PCRE-HOST-PATTERN:". To enable this, configure with
+ --enable-pcre-host-patterns.
+ Sponsored by: Robert Klemme
+ - Added "Cross-origin resource sharing" (CORS) support.
+ This allows to access Privoxy's CGI interface via JavaScript from
+ another domain (white-listed with the new cors-allowed-origin directive).
+ Based on a patch by Nedzad Hrnjica.
+ Sponsored by: Robert Klemme.
+ - Add SOCKS5 username/password support.
+ Based on a patch by Sam, improved by Ivan Romanov.
+ Closes Patch#141 and solves TODO#105.
+ - Bump the maximum number of action and filter files
+ to 100 each.
+ Sponsored by: Robert Klemme
+ - Fixed handling of filters with "split-large-forms 1"
+ when using the CGI editor.
+ Reported by withoutname in #921.
+ - Better detect a mismatch of connection details when
+ figuring out whether or not a connection can be reused.
+ - Don't send a "Connection failure" message instead of the
+ "DNS failure" message.
+ Sponsored by: Robert Klemme
+ - Let LOG_LEVEL_REQUEST log all requests. Previously unencrypted
+ requests were only logged with LOG_LEVEL_REQUEST when they weren't
+ crunched (in which case they were logged with LOG_LEVEL_CRUNCH).
+ This was documented behaviour, but logging all requests seems more useful.
+ - Fixed locking around localtime() and gmtime().
+ - Removed OS/2 support. We haven't provided OS/2 packages in years,
+ it complicated the code and it depended on a fallback snprintf()
+ implementation which is GPLv2 only.
+ - Remove the fallback snprintf() implementation
+ Now that OS/2 support is gone we no longer need it.
+ - Fixed a bunch of format specifiers log messages.
+ - Added a missing apostrophe in the 'More Privoxy' menu.
+ - Explicitly prevent use of FEATURE_CONNECTION_SHARING
+ without FEATURE_CONNECTION_KEEP_ALIVE. It makes no sense
+ and does not compile anyway.
+ Sponsored by: Robert Klemme
+ - Fix build without FEATURE_CONNECTION_KEEP_ALIVE.
+ Sponsored by: Robert Klemme
+ - Downgrade the 'Graceful termination requested' message
+ to LOG_LEVEL_INFO as it isn't an error.
+ Sponsored by: Robert Klemme
+ - decompress_iob(): Downgrade the no-content message to LOG_LEVEL_RE_FILTER
+ While at it, fix a typo in a comment.
+ Sponsored by: Robert Klemme
+ - Fixed a couple of cppcheck warnings.
+ - Rename LOG_LEVEL_GPC to LOG_LEVEL_REQUEST.
+ Only the shadow knows what "GPC" is supposed to stand for.
+ - Remove SourceForge references in copyright headers.
+ - Upgrade a bunch of links to the homepage to https://.
+ - Add 'no-brotli-accepted' filter which prevents the
+ use of Brotli compression.
+ - Changed license for pcrs to GPLv2+ after getting the
+ permission from Andreas. This allows to redistribute
+ Privoxy under the GPLv3 which is required when linking
+ to future mbedTLS versions which are expected to be
+ licensed under the Apache 2.0 license only.
+ - Updated a bunch of tests that have to expect status code 403
+ now after r1.168/070e904afa5.
+ - Lowercase the host name in the request line.
+ - Only set SOURCE_DATE_EPOCH if it's not already set so
+ distributions can overwrite it through the environment.
+
+- Documentation changes:
+ - Explain that Privoxy has to be distributed under the
+ GPLv3 (or later) when linked with an MbedTLS version
+ that is licensed under the Apache 2.0 license.
+ - Import the GNU GPLv3 and include it the user manual.
+ - Clarify FEATURE_FORCE_LOAD's description. It allows to bypass
+ blocking not filtering and only does it if blocks aren't enforced.
+ Reported by: Robert Klemme
+ - FAQ: Remove Zwiebelfreunde e.V. from the list of fiduciary sponsors
+ As of 2021 they no longer handle donations for foreign organisations
+ due to lack of resources.
+ - FAQ: Remove an obsolete comment with a link to the long-gone PDF manual.
+ - FAQ: Add a link to the TODO list.
+ - FAQ: Change the sponsor amounts to USD slightly rounding the
+ converted amounts up to get simple numbers.
+ Receiving USD is apparently easier for SPI and SPI is
+ preferred by sponsors as they can send invoices.
+ - Advertise the client-tags CGI page in the user manual.
+ - Stop advertising the show-version CGI page which no longer exists.
+ - Add yet another reason why +prevent-compression may cause problems.
+ - Don't claim that contributors need ssh. It's only needed for committers.
+ - Replace obsolete CVS instructions with Git instructions.
+ - Remove an obsolete comment
+
+- Config file changes:
+ - Change the suggested default-server-timeout to 5 to match the
+ suggested keep-alive-timeout. Otherwise using the defaults would
+ result in Privoxy reducing the default-server-timeout and logging
+ an error message.
+ Sponsored by: Robert Klemme
+ - Update the 'debug 1' description.
+ - Add a missing 'client-specific-tag' directive.
+ - Comment out trusted-cgi-referer pointing to example.org.
- Action file improvements:
- - Unblock ".deutschlandradiokultur.de/".
- Reported by u302320 in #924.
- - Add two fast-redirect exceptions for "yandex.ru".
- - Disable filter{banners-by-size} for ".plasmaservice.de/".
- - Unblock klikki.fi/adv/.
- - Block requests for "resources.infolinks.com/".
- Reported by "Black Rider" on ijbswa-users@.
- - Block a bunch of criteo domains.
- Reported by Black Rider.
- - Block "abs.proxistore.com/abe/".
- Reported by Black Rider.
- - Disable filter{banners-by-size} for ".black-mosquito.org/".
- - Disable fast-redirects for "disqus.com/".
-
-- Documentation improvements:
- - FAQ: Explicitly point fingers at ASUS as an example of a
- company that has been reported to force malware based on
- Privoxy upon its customers.
- - Correctly document the action type for a bunch of "multi-value"
- actions that were incorrectly documented to be "parameterized".
- Reported by Gregory Seidman on ijbswa-users@.
- - Fixed the documented type of the forward-override{} action
- which is obviously 'parameterized'.
-
-- Website improvements:
- - Users who don't trust binaries served by SourceForge
- can get them from a mirror. Migrating away from SourceForge
- is planned for 2016 (TODO list item #53).
- - The website is now available as onion service
- (http://jvauzb4sb3bwlsnc.onion/).
+ - Block requests to /(.*/)?piwik\.php
+ - Block requests to .connectaserver.de/
+ - Block requests to pixel.inforsea.com/
+ - Block requests to t.vi-serve.com/
+ - Block requests to .ioam.de/
+ - Block requests to t.9gag.com/img.gif
+ - Block requests to .pixel.parsely.com/ as image
+ - Block requests to pixel.wp.com/
+ - Disable fast-redirects for .librarything.com/
+ - Disable fast-redirects for issue.freebsdfoundation.org/
+ - Disable fast-redirects for .twitter.com/.*origin=http
+ - Unblock belco24.de/
+ - Add fast-redirects exception for .wikipedia.org/
+ - Add fast-redirects exception for oss-fuzz.com/
+ - Disable fast-redirects for .consensu.org/delivery/pixel\.php
+ and block the requests as image instead
+ - Unblock .adbinstaller.com/
+ Reported by lvm in #942.
+ - Unblock .adbshell.com
+ Reported by lvm in #942.
+ - Unblock .tagesschau.de/
+ - Disable fast-redirects for collector.githubapp.com/
+ and block requests to it as image instead
+ - Unblock 'ada*.'
+ - Add fast-redirects{} exception for sourcepoint.vice.com/
+ - Unblock adaway.org/
+ Reported by DRS David Soft in AF#945.
+ - Change two block reasons that previously were the same.
+ Sponsored by: Robert Klemme
+ - Added a +delay-response{} test.
+ - Updated the location of the development version
+ of default.action.master.
+
+- Privoxy-Log-Parser:
+ - Added a --keep-date option to keep the date in highlighted messages.
+ - Highlight new log messages.
+ - Make gather_loglevel_clf_stats() more tolerant. While at it,
+ count all CLF messages as requests, even if the request is invalid.
+ - Only show HTTP version distribution if at least one version has been detected.
+ - Only show crunch statistics if crunches were detected.
+ - Warn if the request counts differ.
+ - Generate statistics if the log only contains LOG_LEVEL_CLF messages
+ so it can be used with vanilla webserver logs.
+ Previously Privoxy-specific "Request:" messages were required.
+ - Align the client-HTTP-version distribution like other distributions
+ - Bump version to 0.9.1
+ - Include status code distribution in the stats.
+ - Let the statistics include the size of the content Privoxy
+ transferred excluding HTTP headers.
+ - Get with the program and expect all requests to be logged with LOG_LEVEL_REQUEST.
+ It's no longer necessary to count both LOG_LEVEL_REQUEST and
+ LOG_LEVEL_CRUNCH messages to get the total number of requests.
+ - Leverage the LOG_LEVEL_CLF message to gather statistics that where
+ previously taken from LOG_LEVEL_HEADER lines. This results in less
+ confusing results if https inspection is enabled in which case there
+ are two LOG_LEVEL_HEADER lines with request lines.
+ Sponsored by: Robert Klemme
+ - Properly highlight the filter results message. Previously a brace got lost.
+ - Prefer the number of CLF lines to get the total number of requests
+ as it works with older Privoxy versions as well.
+
+- Privoxy-Regression-Test:
+ - Turn curl's globbing mode off so we can allow more characters in URLs.
+ - Allow '[' and ']' in URLs.
+ - Include the action file when complaining about missing Sticky Actions.
+ - Fix a sentence in the documentation.
+ - Bump version to 0.7.1
+
+- url-pattern-translator:
+ - Detect a couple of pattern prefixes case-insensitively.
+ Sponsored by: Robert Klemme
+ - Skip CLIENT-TAG patterns.
+ Sponsored by: Robert Klemme
+ - Skip patterns that have already been converted.
+ It should now be safe to "convert" a file multiple times.
+ Sponsored by: Robert Klemme
+ - Add the new 'PCRE-HOST-PATTERN:' prefix.
+ Sponsored by: Robert Klemme
+
-----------------------------------------------------------------
About Privoxy:
Our TODO list is rather long. Helping hands and donations are welcome:
- * http://www.privoxy.org/faq/general.html#PARTICIPATE
+ * https://www.privoxy.org/faq/general.html#PARTICIPATE
- * http://www.privoxy.org/faq/general.html#DONATE
+ * https://www.privoxy.org/faq/general.html#DONATE
At present, Privoxy is known to run on Windows 95 and later versions
(98, ME, 2000, XP, Vista, Windows 7 etc.), GNU/Linux (RedHat, SuSE,
Debian, Fedora, Gentoo, Slackware and others), Mac OS X (10.4 and
-upwards on PPC and Intel processors), OS/2, Haiku, DragonFly, ElectroBSD,
+upwards on PPC and Intel processors), Haiku, DragonFly, ElectroBSD,
FreeBSD, NetBSD, OpenBSD, Solaris, and various other flavors of Unix.
In addition to the core features of ad blocking and cookie management,
* Supports tagging which allows to change the behaviour based on client
and server headers.
+ * Supports https inspection which allows to filter https requests.
+
* Can be run as an "intercepting" proxy, which obviates the need to
configure browsers individually.
Home Page:
- http://www.privoxy.org/
+ https://www.privoxy.org/
- - Privoxy Developers <ijbswa-developers@lists.sourceforge.net>
+ - Privoxy Developers <privoxy-devel@lists.privoxy.org>
projects / privoxy.git / blobdiff