<!--
- File : $Source: /cvsroot/ijbswa/current/doc/source/changelog.sgml,v $
+ File : doc/source/changelog.sgml
Purpose : Entity included in other project documents.
- $Id: changelog.sgml,v 2.12 2015/01/26 11:25:45 fabiankeil Exp $
-
- Copyright (C) 2013 Privoxy Developers http://www.privoxy.org/
+ Copyright (C) 2013-2021 Privoxy Developers https://www.privoxy.org/
See LICENSE.
======================================================================
user-manual
-->
-<para>
- <application>Privoxy 3.0.23</application> stable is a bug-fix release,
- some of the fixed bugs are security issues:
-</para>
<!--
The SGML ChangeLog can be generated with: utils/changelog2doc.pl ChangeLog
-->
-<para>
+<para>
+ <application>Privoxy 3.0.33</application> fixes an XSS issue
+ and multiple DoS issues and a couple of other bugs.
+ The issues also affect earlier Privoxy releases.
+ <application>Privoxy 3.0.33</application> also comes with
+ a couple of general improvements and new features.
+</para>
+<para>
+ Changes in <application>Privoxy 3.0.33</application> stable:
+</para>
<para>
<itemizedlist>
+ <listitem>
+ <para>
+ Security/Reliability:
+ <itemizedlist>
+ <listitem>
+ <para>
+ 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
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
<listitem>
<para>
Bug fixes:
<itemizedlist>
<listitem>
<para>
- Fixed a DoS issue in case of client requests with incorrect
- chunk-encoded body. When compiled with assertions enabled
- (the default) they could previously cause Privoxy to abort().
- Reported by Matthew Daley. CVE-2015-1380.
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
</para>
</listitem>
<listitem>
<para>
- Fixed multiple segmentation faults and memory leaks in the
- pcrs code. This fix also increases the chances that an invalid
- pcrs command is rejected as such. Previously some invalid commands
- would be loaded without error. Note that Privoxy's pcrs sources
- (action and filter files) are considered trustworthy input and
- should not be writable by untrusted third-parties. CVE-2015-1381.
+ 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.
</para>
</listitem>
<listitem>
<para>
- Fixed an 'invalid read' bug which could at least theoretically
- cause Privoxy to crash. So far, no crashes have been observed.
- CVE-2015-1382.
+ 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.
</para>
</listitem>
<listitem>
<para>
- Compiles with --disable-force again. Reported by Kai Raven.
+ load_config(): Add a space that was missing in a log message.
</para>
</listitem>
<listitem>
<para>
- Client requests with body that can't be delivered no longer
- cause pipelined requests behind them to be rejected as invalid.
- Reported by Basil Hussain.
+ read_http_request_body(): Fix two error messages that used an
+ incorrect variable.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
</para>
</listitem>
</itemizedlist>
<itemizedlist>
<listitem>
<para>
- If a pcrs command is rejected as invalid, Privoxy now logs
- the cause of the problem as text. Previously the pcrs error
- code was logged.
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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@.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ handle_established_connection(): Slightly improve a comment.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ handle_established_connection(): Fix a comment.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ socks5_connect(): Fix indentation.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ handle_established_connection(): Improve an error message.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ create_pattern_spec(): Fix ifdef indentation.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Fix comment typos.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ chat(): Log the applied actions before deciding how to forward the request.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ parse_time_header(): Silence a coverity complaint when building without assertions.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ receive_encrypted_request_headers(): Improve a log message.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
</para>
</listitem>
<listitem>
<para>
- The tests are less likely to cause false positives.
+ 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
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL generate_host_certificate(): Fix two error messsages.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Improve description of handle_established_connection()
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Translate EVP_PKEY_EC to a string.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Remove pointless variable initialization.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ OpenSSL ssl_store_cert(): Initialize pointer with NULL instead of 0.
</para>
</listitem>
</itemizedlist>
<itemizedlist>
<listitem>
<para>
- '.sify.com/' is no longer blocked. Apparently it is not actually
- a pure tracking site (anymore?). Reported by Andrew on ijbswa-users@.
+ Disable fast-redirects for .microsoftonline.com/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Disable fast-redirects for idp.springer.com/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Disable fast-redirects for .zeit.de/zustimmung.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Unblock adv-archiv.dfn-cert.de/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Block requests to eu-tlp01.kameleoon.eu/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Block requests to fpa-events.arstechnica.com/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Unblock nlnet.nl/.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Unblock adguard.com/.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Privoxy-Log-Parser:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Highlight 'Socket timeout 3 reached: http://127.0.0.1:20000/no-filter/chunked-content/36'.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Improve documentation for inactivity-detection mode.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Detect date changes when looking for inactivity.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add a --passed-request-statistics-threshold option
+ that can be set to get statistics for requests that
+ were passed.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add a "inactivity detection" mode which can be useful
+ for debugging purposes.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump version to 0.9.4.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Only run print_intro() and print_outro() when syntax highlighting.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Rephrase a sentence in the documentation.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Highlight 'Client socket 7 is no longer usable. The server socket has been closed.'.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Clarify --statistics output by explicitly mentioning that
+ the status codes sent by the server may differ from the ones
+ in "debug 512" messages.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Fix typo in the --statistics output.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Remove an unused variable.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Highlight 'The peer notified us that the connection on socket 11 is going to be closed'.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Privoxy-Regression-Test:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Remove duplicated word in a comment.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ regression-tests.action:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Add fetch test for http://p.p/wpad.dat.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump for-privoxy-version to 3.0.33 which introduced the wpad.dat support.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add more tests for the '/send-banner' code.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add test for OVE-20210203-0001.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add a test for CVE-2021-20217.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ uagen:
+ <itemizedlist>
+ <listitem>
+ <para>
+ Bump generated Firefox version to 91 (ESR).
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump version to 1.2.3.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump copyright.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Build system:
+ <itemizedlist>
+ <listitem>
+ <para>
+ configure: Bump SOURCE_DATE_EPOCH.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ GNUmakefile.in: Fix typo.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add configure option to enable MemorySanitizer.
</para>
</listitem>
<listitem>
<para>
- Unblock banners on .amnesty.de/ which aren't ads.
+ Add configure option to enable UndefinedBehaviorSanitizer.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Add configure option to enable AddressSanitizer.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Bump copyright.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ configure: Remove obsolete RPM_BASE check.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Documentation improvements:
+ Windows build system:
<itemizedlist>
<listitem>
<para>
- The 'Would you like to donate?' section now also contains
- a "Paypal" address.
+ Update the build script to use mbed tls version 2.6.11.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Update build script to use the final 8.45 pcre library.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Put all the '--enable-xxx' options in the configure call together.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ macOS build system:
+ <itemizedlist>
+ <listitem>
+ <para>
+ The OSXPackageBuilder repository has been updated and
+ can be used to create macOS packages again.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Documentation:
+ <itemizedlist>
+ <listitem>
+ <para>
+ contacting: Remove obsolete reference to announce.sgml.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ contacting: Request that the browser cache is cleared before
+ producing a log file for submission.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Sponsor FAQ: Note that Privoxy users may follow sponsor links
+ without Referer header set.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ newfeatures: Clarify that https inspection also allows to
+ filter https responses.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ developer-manual: Mention that announce.txt should be updated
+ when doing a release.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ config: Explicitly mention that the CGI pages disclosing the
+ ca-password can be blocked and upgrade the disclosure paragraphs
+ to a warning.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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.
</para>
</listitem>
<listitem>
<para>
- The list of supported operating systems has been updated.
+ Update TODO list item #184 to note that WolfSSL support will
+ (hopefully) appear after the 3.0.34 release.
</para>
</listitem>
<listitem>
<para>
- The existence of the SF support and feature trackers has been
- deemphasized because they have been broken for months.
- Most of the time the mailing lists still work.
+ 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.
</para>
</listitem>
<listitem>
<para>
- The claim that default.action updates are sometimes released
- on their own has been removed. It hasn't happened in years.
+ Add a warning that the socket-timeout does not apply
+ to operations done by TLS libraries.
</para>
</listitem>
<listitem>
<para>
- Explicitly mention that Tor's port may deviate from the default
- when using a bundle. Requested by Andrew on ijbswa-users@.
+ Make documentation slightly less "offensive" for some people
+ by avoiding the word "hell".
</para>
</listitem>
</itemizedlist>
projects / privoxy.git / blobdiff