- Announcing Privoxy 3.0.29 stable
+ Announcing Privoxy 3.0.32 stable
--------------------------------------------------------------------
-Privoxy 3.0.29 stable fixes a couple of memory leaks and introduces
-https inspection which allows to filter encrypted requests and
-responses.
+Privoxy 3.0.32 fixes multiple DoS issues and a couple of other bugs.
+The issues also affect earlier Privoxy releases.
--------------------------------------------------------------------
-ChangeLog for Privoxy 3.0.29
+ChangeLog for Privoxy 3.0.32
--------------------------------------------------------------------
-
- 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.
+ - ssplit(): Remove an assertion that could be triggered with a
+ crafted CGI request.
+ Commit 2256d7b4d67. OVE-20210203-0001.
+ Reported by: Joshua Rogers (Opera)
+ - cgi_send_banner(): Overrule invalid image types. Prevents a
+ crash with a crafted CGI request if Privoxy is toggled off.
+ Commit e711c505c48. OVE-20210206-0001.
+ Reported by: Joshua Rogers (Opera)
+ - socks5_connect(): Don't try to send credentials when none are
+ configured. Fixes a crash due to a NULL-pointer dereference
+ when the socks server misbehaves.
+ Commit 85817cc55b9. OVE-20210207-0001.
+ Reported by: Joshua Rogers (Opera)
+ - chunked_body_is_complete(): Prevent an invalid read of size two.
+ Commit a912ba7bc9c. OVE-20210205-0001.
+ Reported by: Joshua Rogers (Opera)
+ - Obsolete pcre: Prevent invalid memory accesses with an invalid
+ pattern passed to pcre_compile(). Note 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.
+ Commit 28512e5b624. OVE-20210222-0001.
+ Reported by: Joshua Rogers (Opera)
+
+- 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:
- - 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.
+ - Log the TLS version and the the cipher when debug 2 is enabled..
+ - 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.
+ - OpenSSL ssl_store_cert(): Remove a superfluous space before the serial number.
- Action file improvements:
- - 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.
+ - 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:
- - 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.
+ - Highlight a few more messages.
+ - Clarify the --statistics output. The shown "Reused connections"
+ are server connections so name them appropriately.
+ - Bump version to 0.9.3.
- 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
+ - 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.
+ - Clarify that 'debug 32768' should be used in addition to the other debug
+ directives when reporting problems.
+ - Add a 'Third-party licenses and copyrights' section to the user manual.
-----------------------------------------------------------------
About Privoxy:
Our TODO list is rather long. Helping hands and donations are welcome:
- * https://www.privoxy.org/faq/general.html#PARTICIPATE
+ * https://www.privoxy.org/participate
- * https://www.privoxy.org/faq/general.html#DONATE
+ * https://www.privoxy.org/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), Haiku, DragonFly, ElectroBSD,
-FreeBSD, NetBSD, OpenBSD, Solaris, and various other flavors of Unix.
+(98, ME, 2000, XP, Vista, Windows 7, Windows 10 etc.), GNU/Linux
+(RedHat, SuSE, Debian, Fedora, Gentoo, Slackware and others),
+Mac OS X (10.4 and 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,
Privoxy provides many supplemental features, that give the end-user
projects / privoxy.git / blobdiff