X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;f=doc%2Fsource%2Fchangelog.sgml;h=95f7cfaba880ba1516b1c83032f3ead97243b457;hb=157312a27ddadfdca91ccd1ed4b7b6e300ca5e9b;hp=4413bb52c1d6a7b2966ef3d3ae48024599a5c396;hpb=4a418afddb7f0cbd4004b877b7df81bb10fd3f58;p=privoxy.git diff --git a/doc/source/changelog.sgml b/doc/source/changelog.sgml index 4413bb52..95f7cfab 100644 --- a/doc/source/changelog.sgml +++ b/doc/source/changelog.sgml @@ -3,7 +3,7 @@ Purpose : Entity included in other project documents. - Copyright (C) 2013-2018 Privoxy Developers https://www.privoxy.org/ + Copyright (C) 2013-2021 Privoxy Developers https://www.privoxy.org/ See LICENSE. ====================================================================== @@ -24,14 +24,16 @@ --> - Privoxy 3.0.31 fixes two security issues - that were discovered while preparing the 3.0.30 release. The issues - also affect earlier Privoxy releases. + Privoxy 3.0.33 fixes an XSS issue + and multiple DoS issues and a couple of other bugs. + The issues also affect earlier Privoxy releases. + Privoxy 3.0.33 also comes with + a couple of general improvements and new features. - - Changes in Privoxy 3.0.31 stable: - - + + Changes in Privoxy 3.0.33 stable: + + @@ -39,100 +41,92 @@ - Prevent an assertion from getting triggered by a crafted CGI request. - Commit 5bba5b89193fa. OVE-20210130-0001. - Reported by: Joshua Rogers (Opera) + cgi_error_no_template(): Encode the template name to prevent + XSS (cross-site scripting) when Privoxy is configured to servce + the user-manual itself. + Commit 0e668e9409c. OVE-20211102-0001. CVE-2021-44543. + Reported by: Artem Ivanov - Fixed a memory leak when decompression fails "unexpectedly". - Commit f431d61740cc0. OVE-20210128-0001. + get_url_spec_param(): Free memory of compiled pattern spec + before bailing. + Reported by Joshua Rogers (Opera) who also provided the fix. + Commit 652b4b7cb0. OVE-20211201-0003. CVE-2021-44540. - - - - - - - Bug fixes: - + + + + process_encrypted_request_headers(): Free header memory when + failing to get the request destination. + Reported by Joshua Rogers (Opera) who also provided the fix. + Commit 0509c58045. OVE-20211201-0002. CVE-2021-44541. + + - Fixed detection of insufficient data for decompression. - Previously Privoxy could try to decompress a partly - uninitialized buffer. + send_http_request(): Prevent memory leaks when handling errors + Reported by Joshua Rogers (Opera) who also provided the fix. + Commit c48d1d6d08. OVE-20211201-0001. CVE-2021-44542. - - - - Changes in Privoxy 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. + 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. - Let the hide-referrer code tolerate Referer headers with https:// URLs. - Previously they would always be treated like a changed host. + 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. - 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. + 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. - 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. + 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. - Support using https-inspection and client-header-order at the same time. - Previously Privoxy would crash. - Reported by: Kai Raven + load_config(): Add a space that was missing in a log message. - 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. + read_http_request_body(): Fix two error messages that used an + incorrect variable. - 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. + 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. @@ -144,173 +138,175 @@ - 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 + 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. - 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 + 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. - 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. + 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. - Recycle debug bit 4 for Tagging-related messages. + 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@. - Improve the message shown when the client-tags CGI page - is requested with no tags configured. + 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. - 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. + 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. - 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. + 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. - The code compiles with older C compilers again. + 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. - The chdir() return code is checked to fix a compiler warning. + handle_established_connection(): Slightly improve a comment. - 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. + handle_established_connection(): Fix a comment. - Fixed harmless compiler warnings from GCC9 with -D_FORTIFY_SOURCE=2. + socks5_connect(): Fix indentation. - windows: Remove obsolete '$(DEST)/doc/images' target. + handle_established_connection(): Improve an error message. - windows: Install the images referenced in the user manual. + create_pattern_spec(): Fix ifdef indentation. - Remove obsolete 'gnu_regex.@OBJEXT@' target. + Fix comment typos. - 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. + 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. - Add new FEATURES to the show-status page and resort list. + chat(): Log the applied actions before deciding how to forward the request. - Remove unused variable in the OpenSSL-specific code. + parse_time_header(): Silence a coverity complaint when building without assertions. - Update bug tracker URL in cgi_error_unknown(). + receive_encrypted_request_headers(): Improve a log message. - Saved a couple of memory allocations when sorting client headers. + 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. - Improved a couple of error messages. + 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. - Saved memory allocations when using OpenSSL and checking if a - key already exists. + 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 - The configure script will bail out if OpenSSL and mbedTLS are - enabled at the same time. + OpenSSL generate_host_certificate(): Fix two error messsages. - Log a message right before exiting gracefully. + Improve description of handle_established_connection() - A couple of structures have been rearranged to require slightly - less memory. + OpenSSL ssl_store_cert(): Translate EVP_PKEY_EC to a string. - When https inspection is enabled and the certificate is invalid - the error message is now sent with status code 403 instead of 200. + OpenSSL ssl_store_cert(): Remove pointless variable initialization. - 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. + OpenSSL ssl_store_cert(): Initialize pointer with NULL instead of 0. @@ -322,121 +318,119 @@ - Block requests to eu-tlp03.kameleoon.com/. + Disable fast-redirects for .microsoftonline.com/. - Unblock metrics.sr.ht/. + Disable fast-redirects for idp.springer.com/. - Disable fast-redirects for .fsf.org/. + Disable fast-redirects for .zeit.de/zustimmung. - Disable fast-redirects for .gravater.com/. + Unblock adv-archiv.dfn-cert.de/. - Disable fast-redirects for .ksta.de/. + Block requests to eu-tlp01.kameleoon.eu/. - Block requests to tag.crsspxl.com/. + Block requests to fpa-events.arstechnica.com/. - Block requests to analytics.slashdotmedia.com/. + Unblock nlnet.nl/. - Block requests to ml314.com/. + Unblock adguard.com/. - + + + + + + + Privoxy-Log-Parser: + - Block requests to .adroll.com/. + Highlight 'Socket timeout 3 reached: http://127.0.0.1:20000/no-filter/chunked-content/36'. - Block requests to fastlane.rubiconproject.com/. + Improve documentation for inactivity-detection mode. - Block requests to api.theadex.com/. + Detect date changes when looking for inactivity. - Block requests to ih.adscale.de/. + Add a --passed-request-statistics-threshold option + that can be set to get statistics for requests that + were passed. - Block requests to .s400.meetrics.net/. + Add a "inactivity detection" mode which can be useful + for debugging purposes. - Block requests for pp.lp4.io/. + Bump version to 0.9.4. - Block requests for trc-events.taboola.com/. + Only run print_intro() and print_outro() when syntax highlighting. - - - - - - - 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. + Rephrase a sentence in the documentation. - Added an imdb filter. + Highlight 'Client socket 7 is no longer usable. The server socket has been closed.'. - Added a sourceforge filter that reduces the amount of ads - for proprietary software. + Clarify --statistics output by explicitly mentioning that + the status codes sent by the server may differ from the ones + in "debug 512" messages. - Added a github filter that removes the annoying "Sign-Up" - banner and the Cookie disclaimer. + Fix typo in the --statistics output. - Removed a duplicated pcrs command from the js-annoyances filter. + Remove an unused variable. - 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. + Highlight 'The peer notified us that the connection on socket 11 is going to be closed'. @@ -444,38 +438,11 @@ - Privoxy-Log-Parser: + Privoxy-Regression-Test: - 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. + Remove duplicated word in a comment. @@ -483,66 +450,31 @@ - Privoxy-Regression-Test: + regression-tests.action: - Use http://127.0.0.1:8118/ as default Privoxy address - unless http_proxy is set through the environment. + Add fetch test for http://p.p/wpad.dat. - 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. + Bump for-privoxy-version to 3.0.33 which introduced the wpad.dat support. - 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. + Add more tests for the '/send-banner' code. - Use --proxy-header when using a CGI prefix with https:// - and a "Host:" header. + Add test for OVE-20210203-0001. - 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 + Add a test for CVE-2021-20217. @@ -554,267 +486,76 @@ - Update example output. - - - - - Recommend the use of the https-inspection action in the documentation. + Bump generated Firefox version to 91 (ESR). - Upgrade a couple of URLs to https://. + Bump version to 1.2.3. - Add ElectroBSD to the list of operating systems. - - - - - Bumped generated Firefox version to 78 (ESR). - - - - - Bumped version to 1.2.2. + Bump copyright. + + + Build system: + - 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. + configure: Bump SOURCE_DATE_EPOCH. - List more client-specific-tag examples for inspiration. + GNUmakefile.in: Fix typo. - Add additional headers to the client-header-order example. + 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. - Note that actions aren't updated after rewrites. + Add configure option to enable MemorySanitizer. - Explicitly mention that upgrading from http to https with - a client-header filter is not supported + Add configure option to enable UndefinedBehaviorSanitizer. - Note that protocol and host have to be added when rewriting - the destination host for https-inspected requests. + Add configure option to enable AddressSanitizer. - Explicitly mention that the CA key is used to sign certificates. + Bump copyright. - Put openssl command in 'command' tags. + 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. - The man page has been moved from section 1 to man section 8. + configure: Remove obsolete RPM_BASE check. @@ -822,147 +563,21 @@ - Developer manual: + Windows build system: - 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). + Update the build script to use mbed tls version 2.6.11. - Note that the 'webserver' target creates the link needed for the user-manual. + Update build script to use the final 8.45 pcre library. - 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. + Put all the '--enable-xxx' options in the configure call together. @@ -970,94 +585,90 @@ - Tests: + macOS build system: - Add another hide-referrer{conditional-block} test. + The OSXPackageBuilder repository has been updated and + can be used to create macOS packages again. - - - - 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. - - + + + + + + + Documentation: + - Explain why the "Set Header = Host: whatever.example.org" test is - expected to fail when using a CGI prefix that starts with "https://". + contacting: Remove obsolete reference to announce.sgml. - Explain why a connection-sharing test is known to fail - when using "https://p.p/" as CGI prefix. + contacting: Request that the browser cache is cleared before + producing a log file for submission. - Add a link to Privoxy-Regression-Test to regression-tests.action - in case it isn't packaged. + Sponsor FAQ: Note that Privoxy users may follow sponsor links + without Referer header set. - Add regression tests for pcre host patterns. + newfeatures: Clarify that https inspection also allows to + filter https responses. - Fixed a regression test that is executed when - FEATURE_GRACEFUL_TERMINATION is enabled. + developer-manual: Mention that announce.txt should be updated + when doing a release. - - - - - - Privoxy infrastructure: - - Import a Privoxy logo for the website. + config: Explicitly mention that the CGI pages disclosing the + ca-password can be blocked and upgrade the disclosure paragraphs + to a warning. - Update Tor onion service to HiddenServiceVersion 3. + 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. - Display the "model" photos in a single row and remove placeholder images. + Update TODO list item #184 to note that WolfSSL support will + (hopefully) appear after the 3.0.34 release. - Regenerate homepage with updated sponsor list. + 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. - Use the '/sponsor' redirect for the link to the sponsor page. + Add a warning that the socket-timeout does not apply + to operations done by TLS libraries. - Git commit messages are sent to the Privoxy-commits mailing list. + Make documentation slightly less "offensive" for some people + by avoiding the word "hell".