[SECURITY] Fedora 17 Update: privoxy-3.0.21-1.fc17

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2013-3756
2013-03-12 22:35:49
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Name        : privoxy
Product     : Fedora 17
Version     : 3.0.21
Release     : 1.fc17
URL         : http://www.privoxy.org/
Summary     : Privacy enhancing proxy
Description :
Privoxy is a web proxy with advanced filtering capabilities for
protecting privacy, filtering web page content, managing cookies,
controlling access, and removing ads, banners, pop-ups and other
obnoxious Internet junk. Privoxy has a very flexible configuration and
can be customized to suit individual needs and tastes. Privoxy has application
for both stand-alone systems and multi-user networks.

Privoxy is based on the Internet Junkbuster.

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Update Information:

Common Vulnerabilities and Exposures assigned an identifier CVE-2013-2503 to the following vulnerability:

Privoxy before 3.0.21 does not properly handle Proxy-Authenticate and Proxy-Authorization headers in the client-server data stream, which makes it easier for remote HTTP servers to spoof the intended proxy service via a 407 (aka Proxy Authentication Required) HTTP status code.

References:
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2503
[2] http://blog.c22.cc/2013/03/11/privoxy-proxy-authentication-credential-exposure-cve-2013-2503/
[3] http://ijbswa.cvs.sourceforge.net/viewvc/ijbswa/current/ChangeLog?revision=1.188&view=markup
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ChangeLog:

* Tue Mar 12 2013 Jon Ciesla <limburgher at gmail.com> - 3.0.21-1
- 3.0.21, fix for CVE-2013-2503.
* Mon Oct  1 2012 Jon Ciesla <limburgher at gmail.com> - 3.0.16-6.2
- Change ownership of binary and config to root.
* Mon Oct  1 2012 Jon Ciesla <limburgher at gmail.com> - 3.0.16-6.1
- Allow execution by all users, BZ 849932.
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References:

  [ 1 ] Bug #920645 - CVE-2013-2503 privoxy: Proxy-Authentication response spoofing [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=920645
  [ 2 ] Bug #920647 - CVE-2013-2503 privoxy: Proxy-Authentication response spoofing [epel-6]
        https://bugzilla.redhat.com/show_bug.cgi?id=920647
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This update can be installed with the "yum" update program.  Use 
su -c 'yum update privoxy' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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