-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
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-><A
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-><DIV
-CLASS="SECT1"
-><H1
-CLASS="SECT1"
-><A
-NAME="WHATSNEW"
->3. What's New in this Release</A
-></H1
-><P
-> <SPAN
-CLASS="APPLICATION"
->Privoxy 3.0.13</SPAN
-> introduces IPv6 support,
- improved keep-alive support and a bunch of minor improvements:</P
-><P
-> <P
-></P
-><UL
-><LI
-><P
-> Added IPv6 support. Thanks to Petr Pisar who not only provided
- the initial patch but also helped a lot with the integration.
- </P
-></LI
-><LI
-><P
-> Added client-side keep-alive support. This should also allow
- NTLM authentication through Privoxy, but this hasn't been
- confirmed yet.
- </P
-></LI
-><LI
-><P
-> The connection sharing code is only used if the connection-sharing
- option is enabled.
- </P
-></LI
-><LI
-><P
-> The max-client-connections option has been added to restrict
- the number of client connections below a value enforced by
- the operating system.
- </P
-></LI
-><LI
-><P
-> Fixed a regression reintroduced in 3.0.12 that could cause
- crashes on mingw32 if header date randomization was enabled.
- </P
-></LI
-><LI
-><P
-> Compressed content with extra fields couldn't be decompressed
- and would get passed to the client unfiltered. This problem
- has only be detected through statical analysis with clang as
- nobody seems to be using extra fields anyway.
- </P
-></LI
-><LI
-><P
-> If the server resets the Connection after sending only the headers
- Privoxy forwards what it got to the client. Previously Privoxy
- would deliver an error message instead.
- </P
-></LI
-><LI
-><P
-> Error messages in case of connection timeouts use the right
- HTTP status code.
- </P
-></LI
-><LI
-><P
-> If spawning a child to handle a request fails, the client
- gets an error message and Privoxy continues to listen for
- new requests right away.
- </P
-></LI
-><LI
-><P
-> The error messages in case of server-connection timeouts or
- prematurely closed server connections are now template-based.
- </P
-></LI
-><LI
-><P
-> If zlib support isn't compiled in, Privoxy no longer tries to
- filter compressed content unless explicitly asked to do so.
- </P
-></LI
-><LI
-><P
-> In case of connections that are denied based on ACL directives,
- the memory used for the client IP is no longer leaked.
- </P
-></LI
-><LI
-><P
-> Fixed another small memory leak if the client request times out
- while waiting for client headers other than the request line.
- </P
-></LI
-><LI
-><P
-> The client socket is kept open until the server socket has
- been marked as unused. This should increase the chances that
- the still-open connection will be reused for the client's next
- request to the same destination. Note that this only matters
- if connection-sharing is enabled.
- </P
-></LI
-><LI
-><P
-> A TODO list has been added to the source tarballs to give potential
- volunteers a better idea of what the current goals are. Donations
- are still welcome too: http://www.privoxy.org/faq/general.html#DONATE
- </P
-></LI
-></UL
-></P
-><DIV
-CLASS="SECT2"
-><H2
-CLASS="SECT2"
-><A
-NAME="UPGRADERSNOTE"
->3.1. Note to Upgraders</A
-></H2
-><P
-> A quick list of things to be aware of before upgrading from earlier
- versions of <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->:</P
-><P
-> <P
-></P
-><UL
-><LI
-><P
-> The recommended way to upgrade <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> is to backup your old
- configuration files, install the new ones, verify that <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
->
- is working correctly and finally merge back your changes using
- <SPAN
-CLASS="APPLICATION"
->diff</SPAN
-> and maybe <SPAN
-CLASS="APPLICATION"
->patch</SPAN
->.
- </P
-><P
-> There are a number of new features in each <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> release and
- most of them have to be explicitly enabled in the configuration
- files. Old configuration files obviously don't do that and due
- to syntax changes using old configuration files with a new
- <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> isn't always possible anyway.
- </P
-></LI
-><LI
-><P
->
- Note that some installers remove earlier versions completely,
- including configuration files, therefore you should really save
- any important configuration files!
- </P
-></LI
-><LI
-><P
->
- On the other hand, other installers don't overwrite existing configuration
- files, thinking you will want to do that yourself.
- </P
-></LI
-><LI
-><P
->
- <TT
-CLASS="FILENAME"
->standard.action</TT
-> has been merged into
- the <TT
-CLASS="FILENAME"
->default.action</TT
-> file.
- </P
-></LI
-><LI
-><P
-> In the default configuration only fatal errors are logged now.
- You can change that in the <A
-HREF="config.html#DEBUG"
->debug section</A
->
- of the configuration file. You may also want to enable more verbose
- logging until you verified that the new <SPAN
-CLASS="APPLICATION"
->Privoxy</SPAN
-> version is working
- as expected.
- </P
-></LI
-><LI
-><P
-> Three other config file settings are now off by default:
- <A
-HREF="config.html#ENABLE-REMOTE-TOGGLE"
->enable-remote-toggle</A
->,
- <A
-HREF="config.html#ENABLE-REMOTE-HTTP-TOGGLE"
->enable-remote-http-toggle</A
->,
- and <A
-HREF="config.html#ENABLE-EDIT-ACTIONS"
->enable-edit-actions</A
->.
- If you use or want these, you will need to explicitly enable them, and
- be aware of the security issues involved.
- </P
-></LI
-></UL
-></P
-></DIV
-></DIV
-><DIV
-CLASS="NAVFOOTER"
-><HR
-ALIGN="LEFT"
-WIDTH="100%"><TABLE
-SUMMARY="Footer navigation table"
-WIDTH="100%"
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-VALIGN="top"
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-HREF="installation.html"
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->Prev</A
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+"http://www.w3.org/TR/html4/loose.dtd">
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+<head>
+ <title>What's New in this Release</title>
+ <meta name="GENERATOR" content=
+ "Modular DocBook HTML Stylesheet Version 1.79">
+ <link rel="HOME" title="Privoxy 3.0.25 User Manual" href="index.html">
+ <link rel="PREVIOUS" title="Installation" href="installation.html">
+ <link rel="NEXT" title="Quickstart to Using Privoxy" href=
+ "quickstart.html">
+ <link rel="STYLESHEET" type="text/css" href="../p_doc.css">
+ <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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+"#840084" alink="#0000FF">
+ <div class="NAVHEADER">
+ <table summary="Header navigation table" width="100%" border="0"
+ cellpadding="0" cellspacing="0">
+ <tr>
+ <th colspan="3" align="center">Privoxy 3.0.25 User Manual</th>
+ </tr>
+
+ <tr>
+ <td width="10%" align="left" valign="bottom"><a href=
+ "installation.html" accesskey="P">Prev</a></td>
+
+ <td width="80%" align="center" valign="bottom"></td>
+
+ <td width="10%" align="right" valign="bottom"><a href=
+ "quickstart.html" accesskey="N">Next</a></td>
+ </tr>
+ </table>
+ <hr align="left" width="100%">
+ </div>
+
+ <div class="SECT1">
+ <h1 class="SECT1"><a name="WHATSNEW" id="WHATSNEW">3. What's New in this
+ Release</a></h1>
+
+ <p><span class="APPLICATION">Privoxy 3.0.24</span> stable contains a
+ couple of new features but is mainly a bug-fix release. Two of the fixed
+ bugs are security issues and may be used to remotely trigger crashes on
+ platforms that carefully check memory accesses (most don't).</p>
+
+ <ul>
+ <li>
+ <p>Security fixes (denial of service):</p>
+
+ <ul>
+ <li>
+ <p>Prevent invalid reads in case of corrupt chunk-encoded
+ content. CVE-2016-1982. Bug discovered with afl-fuzz and
+ AddressSanitizer.</p>
+ </li>
+
+ <li>
+ <p>Remove empty Host headers in client requests. Previously they
+ would result in invalid reads. CVE-2016-1983. Bug discovered with
+ afl-fuzz and AddressSanitizer.</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Bug fixes:</p>
+
+ <ul>
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>Fixed buffer scaling in execute_external_filter() that could
+ lead to crashes. Submitted by Yang Xia in #892.</p>
+ </li>
+
+ <li>
+ <p>Fixed crashes when executing external filters on platforms
+ like Mac OS X. Reported by Jonathan McKenzie on
+ ijbswa-users@.</p>
+ </li>
+
+ <li>
+ <p>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@.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>Detect and reject parameters for parameter-less actions.
+ Previously they were silently ignored.</p>
+ </li>
+
+ <li>
+ <p>Fixed invalid reads in internal and outdated pcre code. Found
+ with afl-fuzz and AddressSanitizer.</p>
+ </li>
+
+ <li>
+ <p>Prevent invalid read when loading invalid action files. Found
+ with afl-fuzz and AddressSanitizer.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>General improvements:</p>
+
+ <ul>
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>Allow to build with mingw x86_64. Submitted by Rustam
+ Abdullaev in #135.</p>
+ </li>
+
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>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).</p>
+ </li>
+
+ <li>
+ <p>Improved error messages when rejecting intercepted requests
+ with unknown destination.</p>
+ </li>
+
+ <li>
+ <p>A couple of log messages now include the number of active
+ threads.</p>
+ </li>
+
+ <li>
+ <p>Removed non-standard Proxy-Agent headers in HTTP snipplets to
+ make testing more convenient.</p>
+ </li>
+
+ <li>
+ <p>Include the error code for pcre errors Privoxy does not
+ recognize.</p>
+ </li>
+
+ <li>
+ <p>Config directives with numerical arguments are checked more
+ carefully.</p>
+ </li>
+
+ <li>
+ <p>Privoxy's malloc() wrapper has been changed to prevent
+ zero-size allocations which should only occur as the result of
+ bugs.</p>
+ </li>
+
+ <li>
+ <p>Various cosmetic changes.</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Action file improvements:</p>
+
+ <ul>
+ <li>
+ <p>Unblock ".deutschlandradiokultur.de/". Reported by u302320 in
+ #924.</p>
+ </li>
+
+ <li>
+ <p>Add two fast-redirect exceptions for "yandex.ru".</p>
+ </li>
+
+ <li>
+ <p>Disable filter{banners-by-size} for ".plasmaservice.de/".</p>
+ </li>
+
+ <li>
+ <p>Unblock "klikki.fi/adv/".</p>
+ </li>
+
+ <li>
+ <p>Block requests for "resources.infolinks.com/". Reported by
+ "Black Rider" on ijbswa-users@.</p>
+ </li>
+
+ <li>
+ <p>Block a bunch of criteo domains. Reported by Black Rider.</p>
+ </li>
+
+ <li>
+ <p>Block "abs.proxistore.com/abe/". Reported by Black Rider.</p>
+ </li>
+
+ <li>
+ <p>Disable filter{banners-by-size} for
+ ".black-mosquito.org/".</p>
+ </li>
+
+ <li>
+ <p>Disable fast-redirects for "disqus.com/".</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Documentation improvements:</p>
+
+ <ul>
+ <li>
+ <p>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.</p>
+ </li>
+
+ <li>
+ <p>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@.</p>
+ </li>
+
+ <li>
+ <p>Fixed the documented type of the forward-override{} action
+ which is obviously 'parameterized'.</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Website improvements:</p>
+
+ <ul>
+ <li>
+ <p>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).</p>
+ </li>
+
+ <li>
+ <p>The website is now available as onion service
+ (http://jvauzb4sb3bwlsnc.onion/).</p>
+ </li>
+ </ul>
+ </li>
+ </ul>
+
+ <div class="SECT2">
+ <h2 class="SECT2"><a name="UPGRADERSNOTE" id="UPGRADERSNOTE">3.1. Note
+ to Upgraders</a></h2>
+
+ <p>A quick list of things to be aware of before upgrading from earlier
+ versions of <span class="APPLICATION">Privoxy</span>:</p>
+
+ <ul>
+ <li>
+ <p>The recommended way to upgrade <span class=
+ "APPLICATION">Privoxy</span> is to backup your old configuration
+ files, install the new ones, verify that <span class=
+ "APPLICATION">Privoxy</span> is working correctly and finally merge
+ back your changes using <span class="APPLICATION">diff</span> and
+ maybe <span class="APPLICATION">patch</span>.</p>
+
+ <p>There are a number of new features in each <span class=
+ "APPLICATION">Privoxy</span> release and most of them have to be
+ explicitly enabled in the configuration files. Old configuration
+ files obviously don't do that and due to syntax changes using old
+ configuration files with a new <span class=
+ "APPLICATION">Privoxy</span> isn't always possible anyway.</p>
+ </li>
+
+ <li>
+ <p>Note that some installers remove earlier versions completely,
+ including configuration files, therefore you should really save any
+ important configuration files!</p>
+ </li>
+
+ <li>
+ <p>On the other hand, other installers don't overwrite existing
+ configuration files, thinking you will want to do that
+ yourself.</p>
+ </li>
+
+ <li>
+ <p>In the default configuration only fatal errors are logged now.
+ You can change that in the <a href="config.html#DEBUG">debug
+ section</a> of the configuration file. You may also want to enable
+ more verbose logging until you verified that the new <span class=
+ "APPLICATION">Privoxy</span> version is working as expected.</p>
+ </li>
+
+ <li>
+ <p>Three other config file settings are now off by default:
+ <a href="config.html#ENABLE-REMOTE-TOGGLE">enable-remote-toggle</a>,
+ <a href=
+ "config.html#ENABLE-REMOTE-HTTP-TOGGLE">enable-remote-http-toggle</a>,
+ and <a href=
+ "config.html#ENABLE-EDIT-ACTIONS">enable-edit-actions</a>. If you
+ use or want these, you will need to explicitly enable them, and be
+ aware of the security issues involved.</p>
+ </li>
+ </ul>
+ </div>
+ </div>
+
+ <div class="NAVFOOTER">
+ <hr align="left" width="100%">
+
+ <table summary="Footer navigation table" width="100%" border="0"
+ cellpadding="0" cellspacing="0">
+ <tr>
+ <td width="33%" align="left" valign="top"><a href="installation.html"
+ accesskey="P">Prev</a></td>
+
+ <td width="34%" align="center" valign="top"><a href="index.html"
+ accesskey="H">Home</a></td>
+
+ <td width="33%" align="right" valign="top"><a href="quickstart.html"
+ accesskey="N">Next</a></td>
+ </tr>
+
+ <tr>
+ <td width="33%" align="left" valign="top">Installation</td>
+
+ <td width="34%" align="center" valign="top"> </td>
+
+ <td width="33%" align="right" valign="top">Quickstart to Using
+ Privoxy</td>
+ </tr>
+ </table>
+ </div>
+</body>
+</html>
projects / privoxy.git / blobdiff