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<h1 class="SECT1"><a name="WHATSNEW" id="WHATSNEW">3. What's New in this Release</a></h1>
- <p><span class="APPLICATION">Privoxy 3.0.26</span> stable is a bug-fix release for the previously released 3.0.25
- beta which introduced client-specific tags and included a couple of minor improvements.</p>
+ <p><span class="APPLICATION">Privoxy 3.0.32</span> fixes multiple DoS issues and a couple of other bugs. The issues
+ also affect earlier Privoxy releases.</p>
+ <p>Changes in <span class="APPLICATION">Privoxy 3.0.32</span> stable:</p>
<ul>
<li>
- <p>Bug fixes:</p>
- <ul>
- <li>
- <p>Fixed crashes with "listen-addr :8118" (SF Bug #902). The regression was introduced in 3.0.25 beta and
- reported by Marvin Renich in Debian bug #834941.</p>
- </li>
- </ul>
- </li>
- <li>
- <p>General improvements:</p>
- <ul>
- <li>
- <p>Log when privoxy is toggled on or off via cgi interface.</p>
- </li>
- <li>
- <p>Highlight the "Info: Now toggled " on/off log message in the Windows log viewer.</p>
- </li>
- <li>
- <p>Highlight the loading actions/filter file log message in the Windows log viewer.</p>
- </li>
- <li>
- <p>Mention client-specific tags on the toggle page as a potentionally more appropriate alternative.</p>
- </li>
- </ul>
- </li>
- <li>
- <p>Documentation improvements:</p>
+ <p>Security/Reliability:</p>
<ul>
<li>
- <p>Update download section on the homepage. The downloads are available from the website now.</p>
+ <p>ssplit(): Remove an assertion that could be triggered with a crafted CGI request. Commit 2256d7b4d67.
+ OVE-20210203-0001. Reported by: Joshua Rogers (Opera)</p>
</li>
<li>
- <p>Add sponsor FAQ.</p>
+ <p>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)</p>
</li>
<li>
- <p>Remove obsolete reference to mailing lists hosted at SourceForge.</p>
+ <p>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)</p>
</li>
<li>
- <p>Update the "Before the Release" section of the developer manual.</p>
+ <p>chunked_body_is_complete(): Prevent an invalid read of size two. Commit a912ba7bc9c. OVE-20210205-0001.
+ Reported by: Joshua Rogers (Opera)</p>
</li>
- </ul>
- </li>
- <li>
- <p>Infrastructure improvements:</p>
- <ul>
<li>
- <p>Add perl script to generate an RSS feed for the packages Submitted by "Unknown".</p>
+ <p>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)</p>
</li>
</ul>
</li>
<li>
- <p>Build system improvements:</p>
+ <p>Bug fixes:</p>
<ul>
<li>
- <p>strptime.h: fix a compiler warning about ambiguous else.</p>
+ <p>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)</p>
</li>
<li>
- <p>configure.in: Check for Docbook goo on the BSDs as well.</p>
+ <p>decompress_iob(): Prevent reading of uninitialized data. Reported by: Joshua Rogers (Opera).</p>
</li>
<li>
- <p>GNUMakefile.in: Let the dok-user target remove temporary files.</p>
+ <p>decompress_iob(): Don't advance cur past eod when looking for the end of the file name and comment.</p>
</li>
- </ul>
- </li>
- </ul>
- <p>Changes between <span class="APPLICATION">Privoxy 3.0.25 beta</span> and the previous release:</p>
- <ul>
- <li>
- <p>Bug fixes:</p>
- <ul>
<li>
- <p>Always use the current toggle state for new requests. Previously new requests on reused connections
- inherited the toggle state from the previous request even though the toggle state could have changed.
- Reported by Robert Klemme.</p>
+ <p>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)</p>
</li>
<li>
- <p>Fixed two buffer-overflows in the (deprecated) static pcre code. These bugs are not considered security
- issues as the input is trusted. Found with afl-fuzz and ASAN.</p>
+ <p>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).</p>
</li>
- </ul>
- </li>
- <li>
- <p>General improvements:</p>
- <ul>
<li>
- <p>Added support for client-specific tags which allow Privoxy admins to pre-define tags that are set for
- all requests from clients that previously opted in through the CGI interface. They are useful in multi-user
- setups where admins may want to allow users to disable certain actions and filters for themselves without
- affecting others. In single-user setups they are useful to allow more fine-grained toggling. For example to
- disable request blocking while still crunching cookies, or to disable experimental filters only. This is an
- experimental feature, the syntax and behaviour may change in future versions. Sponsored by Robert
- Klemme.</p>
+ <p>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)</p>
</li>
<li>
- <p>Dynamic filters and taggers now support a $listen-address variable which contains the address the
- request came in on. For external filters the variable is called $PRIVOXY_LISTEN_ADDRESS. Original patch
- contributed by pursievro.</p>
+ <p>log_error(): Treat LOG_LEVEL_FATAL as fatal even when --stfu is being used while fuzzing. Reported by:
+ Joshua Rogers (Opera).</p>
</li>
<li>
- <p>Add client-header-tagger 'listen-address'.</p>
+ <p>Respect DESTDIR when considering whether or not to install config files with ".new" extension.</p>
</li>
<li>
- <p>Include the listen-address in the log message when logging new requests. Patch contributed by
- pursievro.</p>
+ <p>OpenSSL ssl_store_cert(): Fix two error messages.</p>
</li>
<li>
- <p>Turn invalid max-client-connections values into fatal errors.</p>
+ <p>Fix a couple of format specifiers.</p>
</li>
<li>
- <p>The show-status page now shows whether or not dates before 1970 and after 2038 are expected to be
- handled properly. This is mainly useful for Privoxy-Regression-Test but could also come handy when dealing
- with time-related support requests.</p>
+ <p>Silence compiler warnings when compiling with NDEBUG.</p>
</li>
<li>
- <p>On Mac OS X the thread id in log messages are more likely to be unique now.</p>
+ <p>fuzz_server_header(): Fix compiler warning.</p>
</li>
<li>
- <p>When complaining about missing filters, the filter type is logged as well.</p>
+ <p>fuzz_client_header(): Fix compiler warning.</p>
</li>
<li>
- <p>A couple of harmless coverity warnings were silenced (CID #161202, CID #161203, CID #161211).</p>
+ <p>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.</p>
</li>
</ul>
</li>
<li>
- <p>Action file improvements:</p>
- <ul>
- <li>
- <p>Filtering is disabled for Range requests to let download resumption and Windows updates work with the
- default configuration.</p>
- </li>
- <li>
- <p>Unblock ".ardmediathek.de/". Reported by ThTomate in #932.</p>
- </li>
- </ul>
- </li>
- <li>
- <p>Documentation improvements:</p>
+ <p>General improvements:</p>
<ul>
<li>
- <p>Add FAQ entry for crashes caused by memory limits.</p>
+ <p>Log the TLS version and the the cipher when debug 2 is enabled.</p>
</li>
<li>
- <p>Remove obsolete FAQ entry about a bug in PHP 4.2.3.</p>
+ <p>ssl_send_certificate_error(): Respect HEAD requests by not sending a body.</p>
</li>
<li>
- <p>Mention the new mailing lists were appropriate. As the archives have not been migrated, continue to
- mention the archives at SF in the contacting section for now.</p>
+ <p>ssl_send_certificate_error(): End the body with a single new line.</p>
</li>
<li>
- <p>Note that the templates should be adjusted if Privoxy is running as intercepting proxy without getting
- all requests.</p>
+ <p>serve(): Increase the chances that the host is logged when closing a server socket.</p>
</li>
<li>
- <p>A bunch of links were converted to https://.</p>
+ <p>handle_established_connection(): Add parentheses to clarify an expression Suggested by: David
+ Binderman</p>
</li>
<li>
- <p>Rephrase onion service paragraph to make it more obvious that Tor is involved and that the whole website
- (and not just the homepage) is available as onion service.</p>
+ <p>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).</p>
</li>
<li>
- <p>Streamline the "More information" section on the homepage further by additionally ditching the link to
- the 'See also' section of the user manual. The section contains mostly links that are directly reachable
- from the homepage already and the rest is not significant enough to get a link from the homepage.</p>
+ <p>decompress_iob(): Add periods to a couple of log messages</p>
</li>
<li>
- <p>Change the add-header{} example to set the DNT header and use a complete section to make copy and
- pasting more convenient. Add a comment to make it obvious that adding the header is not recommended for
- obvious reasons. Using the DNT header as example was suggested by Leo Wzukw.</p>
+ <p>Terminate the body of the HTTP snipplets with a single new line instead of "\r\n".</p>
</li>
<li>
- <p>Streamline the support-and-service template Instead of linking to the various support trackers (whose
- URLs hopefully change soon), link to the contact section of the user manual to increase the chances that
- users actually read it.</p>
+ <p>configure: Add --with-assertions option and only enable assertions when it is used</p>
</li>
<li>
- <p>Add a FAQ entry for tainted sockets.</p>
+ <p>windows build: Use --with-brotli and --with-mbedtls by default and enable dynamic error checking.</p>
</li>
<li>
- <p>More sections in the documentation have stable URLs now.</p>
+ <p>gif_deanimate(): Confirm we've got an image before trying to write it Saves a pointless buf_copy()
+ call.</p>
</li>
<li>
- <p>FAQ: Explain why 'ping config.privoxy.org' is not expected to reach a local Privoxy installation.</p>
- </li>
- <li>
- <p>Note that donations done through Zwiebelfreunde e.V. currently can't be checked automatically.</p>
- </li>
- <li>
- <p>Updated section regarding starting Privoxy under OS X.</p>
- </li>
- <li>
- <p>Use dedicated start instructions for FreeBSD and ElectroBSD.</p>
- </li>
- <li>
- <p>Removed release instructions for AIX. They haven't been working for years and unsurprisingly nobody
- seems to care.</p>
- </li>
- <li>
- <p>Removed obsolete reference to the solaris-dist target.</p>
+ <p>OpenSSL ssl_store_cert(): Remove a superfluous space before the serial number.</p>
</li>
+ </ul>
+ </li>
+ <li>
+ <p>Action file improvements:</p>
+ <ul>
<li>
- <p>Updated the release instructions for FreeBSD.</p>
+ <p>Disable fast-redirects for .golem.de/</p>
</li>
<li>
- <p>Removed unfinished release instructions for Amiga OS and HP-UX 11.</p>
+ <p>Unblock requests to adri*.</p>
</li>
<li>
- <p>Added a pointer to the Cygwin Time Machine for getting the last release of Cygwin version 1.5 to use for
- building Privoxy on Windows.</p>
+ <p>Block requests for trc*.taboola.com/</p>
</li>
<li>
- <p>Various typos have been fixed.</p>
+ <p>Disable fast-redirects for .linkedin.com/</p>
</li>
</ul>
</li>
<li>
- <p>Infrastructure improvements:</p>
+ <p>Filter file improvements:</p>
<ul>
<li>
- <p>The website is no longer hosted at SourceForge and can be reached through https now.</p>
- </li>
- <li>
- <p>The mailing lists at SourceForge have been deprecated, you can subscribe to the new ones at:
- https://lists.privoxy.org/</p>
- </li>
- <li>
- <p>Migrating the remaining services from SourceForge is work in progress (TODO list item #53).</p>
+ <p>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/.</p>
</li>
</ul>
</li>
<li>
- <p>Build system improvements:</p>
+ <p>Privoxy-Log-Parser:</p>
<ul>
<li>
- <p>Add configure argument to optimistically redefine FD_SETSIZE with the intent to change the maximum
- number of client connections Privoxy can handle. Only works with some libcs. Sponsored by Robert
- Klemme.</p>
- </li>
- <li>
- <p>Let the tarball-dist target skip files in ".git".</p>
+ <p>Highlight a few more messages.</p>
</li>
<li>
- <p>Let the tarball-dist target work in cwds other than current.</p>
+ <p>Clarify the --statistics output. The shown "Reused connections" are server connections so name them
+ appropriately.</p>
</li>
<li>
- <p>Make the 'clean' target faster when run from a git repository.</p>
- </li>
- <li>
- <p>Include tools in the generic distribution.</p>
- </li>
- <li>
- <p>Let the gen-dist target work in cwds other than current.</p>
- </li>
- <li>
- <p>Sort find output that is used for distribution tarballs to get reproducible results.</p>
- </li>
- <li>
- <p>Don't add '-src' to the name of the tar ball generated by the gen-dist target. The package isn't a
- source distribution but a binary package. While at it, use a variable for the name to reduce the chances
- that the various references get out of sync and fix the gen-upload target which was looking in the wrong
- directory.</p>
- </li>
- <li>
- <p>Add regression-tests.action to the files that are distributed.</p>
- </li>
- <li>
- <p>The gen-dist target which was broken since 2002 (r1.92) has been fixed.</p>
- </li>
- <li>
- <p>Remove genclspec.sh which has been obsolete since 2009.</p>
- </li>
- <li>
- <p>Remove obsolete reference to Redhat spec file.</p>
- </li>
- <li>
- <p>Remove the obsolete announce target which has been commented out years ago.</p>
- </li>
- <li>
- <p>Let rsync skip files if the checksums match.</p>
+ <p>Bump version to 0.9.3.</p>
</li>
</ul>
</li>
<p>Privoxy-Regression-Test:</p>
<ul>
<li>
- <p>Add a "Default level offset" directive which can be used to change the default level by a given value.
- This directive affects all tests located after it until the end of the file or a another "Default level
- offset" directive is reached. The purpose of this directive is to make it more convenient to skip similar
- tests in a given file without having to remove or disable the tests completely.</p>
+ <p>Add the --check-bad-ssl option to the --help output.</p>
</li>
<li>
- <p>Let test level 17 depend on FEATURE_64_BIT_TIME_T instead of FEATURE_PTHREAD which has no direct
- connection to the time_t size.</p>
- </li>
- <li>
- <p>Fix indentation in perldoc examples.</p>
+ <p>Bump version to 0.7.3.</p>
</li>
+ </ul>
+ </li>
+ <li>
+ <p>Documentation:</p>
+ <ul>
<li>
- <p>Don't overlook directives in the first line of the action file.</p>
+ <p>Add pushing the created tag to the release steps in the developer manual.</p>
</li>
<li>
- <p>Bump version to 0.7.</p>
+ <p>Clarify that 'debug 32768' should be used in addition to the other debug directives when reporting
+ problems.</p>
</li>
<li>
- <p>Fix detection of the Privoxy version now that https:// is used for the website.</p>
+ <p>Add a 'Third-party licenses and copyrights' section to the user manual.</p>
</li>
</ul>
</li>
projects / privoxy.git / blobdiff