Purpose : Entity included in other project documents.
- $Id: changelog.sgml,v 2.9 2014/11/14 13:50:51 fabiankeil Exp $
+ $Id: changelog.sgml,v 2.14 2016/01/17 14:31:33 fabiankeil Exp $
Copyright (C) 2013 Privoxy Developers http://www.privoxy.org/
See LICENSE.
-->
<para>
- <application>Privoxy 3.0.22</application> stable is mainly a bug-fix
- release, it also has a couple of new features, though.
- Note that the first two entries in the ChangeLog below refer to security
- issues:
+ <application>Privoxy 3.0.24</application> stable contains a couple
+ of new features but is mainly a bug-fix release. Two of the fixed bugs
+ are security issues (CVE requests pending) and may be used to remotely
+ trigger crashes on platforms that carefully check memory accesses (most don't).
</para>
<!--
The SGML ChangeLog can be generated with: utils/changelog2doc.pl ChangeLog
-->
+<para>
+
<para>
<itemizedlist>
<listitem>
<para>
- Bug fixes:
+ Security fixes (denial of service):
<itemizedlist>
<listitem>
<para>
- Fixed a memory leak when rejecting client connections due to
- the socket limit being reached (CID 66382). This affected
- Privoxy 3.0.21 when compiled with IPv6 support (on most
- platforms this is the default).
- </para>
- </listitem>
- <listitem>
- <para>
- Fixed an immediate-use-after-free bug (CID 66394) and two
- additional unconfirmed use-after-free complaints made by
- Coverity scan (CID 66391, CID 66376).
- </para>
- </listitem>
- <listitem>
- <para>
- Actually show the FORCE_PREFIX value on the show-status page.
- </para>
- </listitem>
- <listitem>
- <para>
- Properly deal with Keep-Alive headers with timeout= parameters
- If the timeout still can't be parsed, use the configured
- timeout instead of preventing the client from keeping the
- connection alive. Fixes #3615312/#870 reported by Bernard Guillot.
- </para>
- </listitem>
- <listitem>
- <para>
- Not using any filter files no longer results in warning messages
- unless an action file is referencing header taggers or filters.
- Reported by Stefan Kurtz in #3614835.
+ Prevent invalid reads in case of corrupt chunk-encoded content.
+ Bug discovered with afl-fuzz and AddressSanitizer.
</para>
</listitem>
<listitem>
<para>
- Fixed a bug that prevented Privoxy from reusing some reusable
- connections. Two bit masks with different purpose unintentionally
- shared the same bit.
- </para>
- </listitem>
- <listitem>
- <para>
- A couple of additional bugs were discovered by Coverity Scan.
- The fixes that are not expected to affect users are not explicitly
- mentioned here, for details please have a look at the CVS logs.
+ Remove empty Host headers in client requests.
+ Previously they would result in invalid reads.
+ Bug discovered with afl-fuzz and AddressSanitizer.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- General improvements:
+ Bug fixes:
<itemizedlist>
<listitem>
<para>
- Introduced negative tag patterns NO-REQUEST-TAG and NO-RESPONSE-TAG.
- They apply if no matching tag is found after parsing client or
- server headers.
+ When using socks5t, send the request body optimistically as well.
+ Previously the request body wasn't guaranteed to be sent at all
+ and the error message incorrectly blamed the server.
+ Fixes #1686 reported by Peter Müller and G4JC.
</para>
</listitem>
<listitem>
<para>
- Add support for external filters which allow to process the
- response body with a script or program written in any language
- the platform supports. External filters are enabled with
- +external-filter{} after they have been defined in one of the
- filter files with a header line starting with "EXTERNAL-FILTER:".
- External filter support is experimental, not compiled by default
- and known not to work on all platforms.
+ Fixed buffer scaling in execute_external_filter() that could lead
+ to crashes. Submitted by Yang Xia in #892.
</para>
</listitem>
<listitem>
<para>
- Add support for the 'PATCH' method as defined in RFC5789.
+ Fixed crashes when executing external filters on platforms like
+ Mac OS X. Reported by Jonathan McKenzie on ijbswa-users@.
</para>
</listitem>
<listitem>
<para>
- Reject requests with unsupported Expect header values.
- Fixes a couple of Co-Advisor tests.
+ Properly parse ACL directives with ports when compiled with HAVE_RFC2553.
+ Previously the port wasn't removed from the host and in case of
+ 'permit-access 127.0.0.1 example.org:80' Privoxy would try (and fail)
+ to resolve "example.org:80" instead of example.org.
+ Reported by Pak Chan on ijbswa-users@.
</para>
</listitem>
<listitem>
<para>
- Normalize the HTTP-version in forwarded requests and responses.
- This is an explicit RFC 2616 MUST and RFC 7230 mandates that
- intermediaries send their own HTTP-version in forwarded
- messages.
+ Check requests more carefully before serving them forcefully
+ when blocks aren't enforced. Privoxy always adds the force token
+ at the beginning of the path, but would previously accept it anywhere
+ in the request line. This could result in requests being served that
+ should be blocked. For example in case of pages that were loaded with
+ force and contained JavaScript to create additionally requests that
+ embed the origin URL (thus inheriting the force prefix).
+ The bug is not considered a security issue and the fix does not make
+ it harder for remote sites to intentionally circumvent blocks if
+ Privoxy isn't configured to enforce them.
+ Fixes #1695 reported by Korda.
</para>
</listitem>
<listitem>
<para>
- Server 'Keep-Alive' headers are no longer forwarded. From a user's
- point of view it doesn't really matter, but RFC 2616 (obsolete)
- mandates that the header is removed and this fixes a Co-Advisor
- complaint.
+ Normalize the request line in intercepted requests to make rewriting
+ the destination more convenient. Previously rewrites for intercepted
+ requests were expected to fail unless $hostport was being used, but
+ they failed "the wrong way" and would result in an out-of-memory
+ message (vanilla host patterns) or a crash (extended host patterns).
+ Reported by "Guybrush Threepwood" in #1694.
</para>
</listitem>
<listitem>
<para>
- Change declared template file encoding to UTF-8. The templates
- already used a subset of UTF-8 anyway and changing the declaration
- allows to properly display UTF-8 characters used in the action files.
- This change may require existing action files with ISO-8859-1
- characters that aren't valid UTF-8 to be converted to UTF-8.
- Requested by Sam Chen in #582.
+ Enable socket lingering for the correct socket.
+ Previously it was repeatedly enabled for the listen socket
+ instead of for the accepted socket. The bug was found by
+ code inspection and did not cause any (reported) issues.
</para>
</listitem>
<listitem>
<para>
- Do not pass rejected keep-alive timeouts to the server. It might
- not have caused any problems (we know of), but doing the right
- thing shouldn't hurt either.
+ Detect and reject parameters for parameter-less actions.
+ Previously they were silently ignored.
</para>
</listitem>
<listitem>
<para>
- Let log_error() use its own buffer size #define to make changing
- the log buffer size slightly less inconvenient.
+ Fixed invalid reads in internal and outdated pcre code.
+ Found with afl-fuzz and AddressSanitizer.
</para>
</listitem>
<listitem>
<para>
- Turned single-threaded into a "proper" toggle directive with arguments.
+ Prevent invalid read when loading invalid action files.
+ Found with afl-fuzz and AddressSanitizer.
</para>
</listitem>
<listitem>
<para>
- CGI templates no longer enforce new windows for some links.
+ Windows build: Use the correct function to close the event handle.
+ It's unclear if this bug had a negative impact on Privoxy's behaviour.
+ Reported by Jarry Xu in #891.
</para>
</listitem>
<listitem>
<para>
- Remove an undocumented workaround ('HOST' header removal) for
- an Apple iTunes bug that according to #729900 got fixed in 2003.
+ In case of invalid forward-socks5(t) directives, use the
+ correct directive name in the error messages. Previously they
+ referred to forward-socks4t failures.
+ Reported by Joel Verhagen in #889.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Action file improvements:
+ General improvements:
<itemizedlist>
<listitem>
<para>
- The pattern 'promotions.' is no longer being blocked.
- Reported by rakista in #3608540.
- </para>
- </listitem>
- <listitem>
- <para>
- Disable fast-redirects for .microsofttranslator.com/.
- </para>
- </listitem>
- <listitem>
- <para>
- Disable filter{banners-by-size} for .dgb-tagungszentren.de/.
- </para>
- </listitem>
- <listitem>
- <para>
- Add adn.speedtest.net as a site-specific unblocker.
- Support request #3612908.
- </para>
- </listitem>
- <listitem>
- <para>
- Disable filter{banners-by-size} for creativecommons.org/.
- </para>
- </listitem>
- <listitem>
- <para>
- Block requests to data.gosquared.com/. Reported by cbug in #3613653.
+ Set NO_DELAY flag for the accepting socket. This significantly reduces
+ the latency if the operating system is not configured to set the flag
+ by default. Reported by Johan Sintorn in #894.
</para>
</listitem>
<listitem>
<para>
- Unblock .conrad./newsletter/. Reported by David Bo in #3614238.
+ Allow to build with mingw x86_64. Submitted by Rustam Abdullaev in #135.
</para>
</listitem>
<listitem>
<para>
- Unblock .bundestag.de/.
+ Introduce the new forwarding type 'forward-webserver'.
+ Currently it is only supported by the forward-override{} action and
+ there's no config directive with the same name. The forwarding type
+ is similar to 'forward', but the request line only contains the path
+ instead of the complete URL.
</para>
</listitem>
<listitem>
<para>
- Unblock .rote-hilfe.de/.
+ The CGI editor no longer treats 'standard.action' special.
+ Nowadays the official "standards" are part of default.action
+ and there's no obvious reason to disallow editing them through
+ the cgi editor anyway (if the user decided that the lack of
+ authentication isn't an issue in her environment).
</para>
</listitem>
<listitem>
<para>
- Disable fast-redirects for .facebook.com/plugins/like.php.
+ Improved error messages when rejecting intercepted requests
+ with unknown destination.
</para>
</listitem>
<listitem>
<para>
- Unblock Stackexchange popup URLs that aren't used to serve ads.
- Reported by David Wagner in #3615179.
+ A couple of log messages now include the number of active threads.
</para>
</listitem>
<listitem>
<para>
- Disable fast-redirects for creativecommons.org/.
+ Removed non-standard Proxy-Agent headers in HTTP snipplets
+ to make testing more convenient.
</para>
</listitem>
<listitem>
<para>
- Unblock .stopwatchingus.info/.
+ Include the error code for pcre errors Privoxy does not recognize.
</para>
</listitem>
<listitem>
<para>
- Block requests for .adcash.com/script/.
- Reported by Tyrexionibus in #3615289.
+ Config directives with numerical arguments are checked more carefully.
</para>
</listitem>
<listitem>
<para>
- Disable HTML filters if the response was tagged as JavaScript.
- Filtering JavaScript code with filters intended to deal with HTML
- is usually a waste of time and, more importantly, may break stuff.
+ Privoxy's malloc() wrapper has been changed to prevent zero-size
+ allocations which should only occur as the result of bugs.
</para>
</listitem>
<listitem>
<para>
- Use a custom redirect{} for .washingtonpost.com/wp-apps/imrs\.php\?src=
- Previously enabling the 'Advanced' settings (or manually enabling
- +fast-redirects{}) prevented some images from being loaded properly.
- </para>
- </listitem>
- <listitem>
- <para>
- Unblock "adina*." Fixes #919 reported by Morton A. Goldberg.
- </para>
- </listitem>
- <listitem>
- <para>
- Block '/.*DigiAd'.
- </para>
- </listitem>
- <listitem>
- <para>
- Unblock 'adele*.'. Reported by Adele Lime in #1663.
- </para>
- </listitem>
- <listitem>
- <para>
- Disable banners-by-size for kggp.de/.
+ Various cosmetic changes.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Filter file improvements & bug fixes:
- <itemizedlist>
- <listitem>
- <para>
- Decrease the chances that js-annoyances creates invalid JavaScript.
- Submitted by John McGowan on ijbswa-users@.
- </para>
- </listitem>
- <listitem>
- <para>
- Let the msn filter hide 'related' ads again.
- </para>
- </listitem>
- <listitem>
- <para>
- Remove a stray '1' in the 'html-annoyances' filter.
- </para>
- </listitem>
- <listitem>
- <para>
- Prevent img-reorder from messing up img tags with empty src
- attributes. Fixes #880 reported by Duncan.
- </para>
- </listitem>
- </itemizedlist>
- </para>
- </listitem>
- <listitem>
- <para>
- Documentation improvements:
+ Action file improvements:
<itemizedlist>
<listitem>
<para>
- Updated the 'Would you like to donate?' section.
- </para>
- </listitem>
- <listitem>
- <para>
- Note that invalid forward-override{} parameter syntax isn't
- detected until the parameter is used.
- </para>
- </listitem>
- <listitem>
- <para>
- Add another +redirect{} example: a shortcut for illumos bugs.
- </para>
- </listitem>
- <listitem>
- <para>
- Make it more obvious that many operating systems support log
- rotation out of the box.
- </para>
- </listitem>
- <listitem>
- <para>
- Fixed dead links. Reported by Mark Nelson in #3614557.
- </para>
- </listitem>
- <listitem>
- <para>
- Rephrased the 'Why is the configuration so complicated?' answer
- to be slightly less condescending. Anonymously suggested in #3615122.
- </para>
- </listitem>
- <listitem>
- <para>
- Be more explicit about accept-intercepted-requests's lack of MITM support.
+ Unblock ".deutschlandradiokultur.de/".
+ Reported by u302320 in #924.
</para>
</listitem>
<listitem>
<para>
- Make 'demoronizer' FAQ entries more generic.
+ Add two fast-redirect exceptions for "yandex.ru".
</para>
</listitem>
<listitem>
<para>
- Add an example hostname to the --pre-chroot-nslookup description.
+ Disable filter{banners-by-size} for ".plasmaservice.de/".
</para>
</listitem>
<listitem>
<para>
- Add an example for a host pattern that matches an IP address.
+ Unblock "klikki.fi/adv/".
</para>
</listitem>
<listitem>
<para>
- Rename the 'domain pattern' to 'host pattern' as it may
- contain IP addresses as well.
+ Block requests for "resources.infolinks.com/".
+ Reported by "Black Rider" on ijbswa-users@.
</para>
</listitem>
<listitem>
<para>
- Recommend forward-socks5t when using Tor. It seems to work fine and
- modifying the Tor configuration to profit from it hasn't been necessary
- for a while now.
+ Block a bunch of criteo domains.
+ Reported by Black Rider.
</para>
</listitem>
<listitem>
<para>
- Add another redirect{} example to stress that redirect loops can
- and should be avoided.
+ Block "abs.proxistore.com/abe/".
+ Reported by Black Rider.
</para>
</listitem>
<listitem>
<para>
- The usual spelling and grammar fixes. Parts of them were
- reported by Reuben Thomas in #3615276.
+ Disable filter{banners-by-size} for ".black-mosquito.org/".
</para>
</listitem>
<listitem>
<para>
- Mention the PCRS option letters T and D in the filter section.
- </para>
- </listitem>
- <listitem>
- <para>
- Clarify that handle-as-empty-doc-returns-ok is still useful
- and will not be removed without replacement.
- </para>
- </listitem>
- <listitem>
- <para>
- Note that security issues shouldn't be reported using the bug tracker.
- </para>
- </listitem>
- <listitem>
- <para>
- Clarify what Privoxy does if both +block{} and +redirect{} apply.
- </para>
- </listitem>
- <listitem>
- <para>
- Removed the obsolete bookmarklets section.
+ Disable fast-redirects for "disqus.com/".
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem>
<para>
- Build system improvements:
+ Documentation improvements:
<itemizedlist>
<listitem>
<para>
- Let --with-group properly deal with secondary groups.
- Patch submitted by Anatoly Arzhnikov in #3615187.
- </para>
- </listitem>
- <listitem>
- <para>
- Fix web-actions target.
- </para>
- </listitem>
- <listitem>
- <para>
- Add a web-faq target that only updates the FAQ on the webserver.
- </para>
- </listitem>
- <listitem>
- <para>
- Remove already-commented-out non-portable DOSFILTER alternatives.
+ FAQ: Explicitly point fingers at ASUS as an example of a
+ company that has been reported to force malware based on
+ Privoxy upon its customers.
</para>
</listitem>
<listitem>
<para>
- Remove the obsolete targets dok-put and dok-get.
+ Correctly document the action type for a bunch of "multi-value"
+ actions that were incorrectly documented to be "parameterized".
+ Reported by Gregory Seidman on ijbswa-users@.
</para>
</listitem>
<listitem>
<para>
- Add a sf-shell target.
+ Fixed the documented type of the forward-override{} action
+ which is obviously 'parameterized'.
</para>
</listitem>
</itemizedlist>
</para>
</listitem>
- </itemizedlist>
- <itemizedlist>
<listitem>
<para>
- Known bugs:
+ Website improvements:
<itemizedlist>
- <listitem>
+ <listitem>
+ <para>
+ Users who don't trust binaries served by SourceForge
+ can get them from a mirror. Migrating away from SourceForge
+ is planned for 2016 (TODO list item #53).
+ </para>
+ </listitem>
+ <listitem>
<para>
- To compile with --disable-force you need <ulink
- url="http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/project.h?r1=1.208&r2=1.209&view=patch">this patch</ulink> which
- didn't make it into the release.
- Thanks to Kai Raven for the report.
+ The website is now available as onion service
+ (http://jvauzb4sb3bwlsnc.onion/).
</para>
</listitem>
</itemizedlist>
projects / privoxy.git / blobdiff