-->
<para>
- <application>Privoxy 3.0.32</application> fixes multiple DoS issues
- and a couple of other bugs. The issues also affect earlier Privoxy
- releases.
+ <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 an new features.
</para>
- Changes in <application>Privoxy 3.0.32</application> stable:
- </para>
+<para>
+ Changes in <application>Privoxy 3.0.33</application> stable:
+</para>
+<para>
<itemizedlist>
<listitem>
<para>
- Security/Reliability:
+ Bug fixes:
<itemizedlist>
<listitem>
<para>
- ssplit(): Remove an assertion that could be triggered with a
- crafted CGI request.
- Commit 2256d7b4d67. OVE-20210203-0001.
- Reported by: Joshua Rogers (Opera)
+ 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>
- 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)
+ 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>
- 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)
+ 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>
- chunked_body_is_complete(): Prevent an invalid read of size two.
- Commit a912ba7bc9c. OVE-20210205-0001.
- Reported by: Joshua Rogers (Opera)
+ 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>
- 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 2008 already.
- Commit 28512e5b624. OVE-20210222-0001.
- Reported by: Joshua Rogers (Opera)
+ 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>
+ load_config(): Add a space that was missing in a log message.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Bug fixes:
+ General improvements:
<itemizedlist>
<listitem>
<para>
- 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)
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ read_http_request_body(): Fix two error messages that used an incorrect variable.
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ chat(): Log the applied actions before deciding how to forward the request.
</para>
</listitem>
<listitem>
<para>
- decompress_iob(): Prevent reading of uninitialized data.
- Reported by: Joshua Rogers (Opera).
+ parse_time_header(): Silence a coverity complaint when building without assertions.
</para>
</listitem>
<listitem>
<para>
- decompress_iob(): Don't advance cur past eod when looking
- for the end of the file name and comment.
+ receive_encrypted_request_headers(): Improve a log message
</para>
</listitem>
<listitem>
<para>
- 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)
+ 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>
- 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).
+ 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>
- 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)
+ 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>
<listitem>
<para>
- log_error(): Treat LOG_LEVEL_FATAL as fatal even when --stfu is
- being used while fuzzing.
- Reported by: Joshua Rogers (Opera).
+ 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>
- Respect DESTDIR when considering whether or not to install
- config files with ".new" extension.
+ 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 ssl_store_cert(): Fix two error 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@.
</para>
</listitem>
<listitem>
<para>
- Fix a couple of format specifiers.
+ OpenSSL generate_host_certificate(): Fix two error messsages.
</para>
</listitem>
<listitem>
<para>
- Silence compiler warnings when compiling with NDEBUG.
+ Improve description of handle_established_connection()
</para>
</listitem>
<listitem>
<para>
- fuzz_server_header(): Fix compiler warning.
+ OpenSSL ssl_store_cert(): Translate EVP_PKEY_EC to a string.
</para>
</listitem>
<listitem>
<para>
- fuzz_client_header(): Fix compiler warning.
+ OpenSSL ssl_store_cert(): Remove pointless variable initialization.
</para>
</listitem>
<listitem>
<para>
- 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.
+ OpenSSL ssl_store_cert(): Initialize pointer with NULL instead of 0.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- General improvements:
+ Action file improvements:
<itemizedlist>
<listitem>
<para>
- Log the TLS version and the the cipher when debug 2 is enabled.
+ Disable fast-redirects for .microsoftonline.com/.
</para>
</listitem>
<listitem>
<para>
- ssl_send_certificate_error(): Respect HEAD requests by not sending a body.
+ Disable fast-redirects for idp.springer.com/.
</para>
</listitem>
<listitem>
<para>
- ssl_send_certificate_error(): End the body with a single new line.
+ Disable fast-redirects for .zeit.de/zustimmung
</para>
</listitem>
<listitem>
<para>
- serve(): Increase the chances that the host is logged when closing
- a server socket.
+ Unblock adv-archiv.dfn-cert.de/
</para>
</listitem>
<listitem>
<para>
- handle_established_connection(): Add parentheses to clarify an expression
- Suggested by: David Binderman
+ Block requests to eu-tlp01.kameleoon.eu/
</para>
</listitem>
<listitem>
<para>
- 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).
+ Block requests to fpa-events.arstechnica.com/
</para>
</listitem>
<listitem>
<para>
- decompress_iob(): Add periods to a couple of log messages
+ Unblock nlnet.nl/.
</para>
</listitem>
<listitem>
<para>
- Terminate the body of the HTTP snipplets with a single new line
- instead of "\r\n".
+ 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>
- configure: Add --with-assertions option and only enable assertions
- when it is used
+ Only run print_intro() and print_outro() when syntax highlighting
</para>
</listitem>
<listitem>
<para>
- windows build: Use --with-brotli and --with-mbedtls by default and
- enable dynamic error checking.
+ Rephrase a sentence in the documentation
</para>
</listitem>
<listitem>
<para>
- gif_deanimate(): Confirm we've got an image before trying to write it
- Saves a pointless buf_copy() call.
+ Highlight 'Client socket 7 is no longer usable. The server socket has been closed.'
</para>
</listitem>
<listitem>
<para>
- OpenSSL ssl_store_cert(): Remove a superfluous space before the serial number.
+ 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>
</listitem>
<listitem>
<para>
- Action file improvements:
+ Privoxy-Regression-Test:
<itemizedlist>
<listitem>
<para>
- Disable fast-redirects for .golem.de/
+ 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>
- Unblock requests to adri*.
+ Add more tests for the '/send-banner' code.
</para>
</listitem>
<listitem>
<para>
- Block requests for trc*.taboola.com/
+ Add test for OVE-20210203-0001.
</para>
</listitem>
<listitem>
<para>
- Disable fast-redirects for .linkedin.com/
+ Add a test for CVE-2021-20217.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Filter file improvements:
+ uagen:
<itemizedlist>
<listitem>
<para>
- 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/.
+ 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>
- Privoxy-Log-Parser:
+ Build system:
<itemizedlist>
<listitem>
<para>
- Highlight a few more messages.
+ 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>
- Clarify the --statistics output. The shown "Reused connections"
- are server connections so name them appropriately.
+ Add configure option to enable UndefinedBehaviorSanitizer.
</para>
</listitem>
<listitem>
<para>
- Bump version to 0.9.3.
+ 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>
- Privoxy-Regression-Test:
+ Windows build system:
<itemizedlist>
<listitem>
<para>
- Add the --check-bad-ssl option to the --help output.
+ 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>
- Bump version to 0.7.3.
+ Put all the '--enable-xxx' options in the configure call together.
</para>
</listitem>
</itemizedlist>
<itemizedlist>
<listitem>
<para>
- Add pushing the created tag to the release steps in the developer manual.
+ contacting: Remove obsolete reference to announce.sgml.
</para>
</listitem>
<listitem>
<para>
- Clarify that 'debug 32768' should be used in addition to the other debug
- directives when reporting problems.
+ contacting: Request that the browser cache is cleared before
+ producing a log file for submission.
</para>
- </listitem>
+ </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>
- Add a 'Third-party licenses and copyrights' section to the user manual.
+ 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>
+ Update TODO list item #184 to note that WolfSSL support will
+ (hopefully) appear after the 3.0.34 release
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ 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>
+ Add a warning that the socket-timeout does not apply
+ to operations done by TLS libraries
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Make documentation slightly less "offensive" for some people
+ by avoiding the word "hell".
+ </para>
+ </listitem>
</itemizedlist>
</para>
</listitem>
projects / privoxy.git / commitdiff