[SECURITY] Fedora 20 Update: jansson-2.6-1.fc20

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2014-3778
2014-03-12 09:20:10
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Name        : jansson
Product     : Fedora 20
Version     : 2.6
Release     : 1.fc20
URL         : http://www.digip.org/jansson/
Summary     : C library for encoding, decoding and manipulating JSON data
Description :
Small library for parsing and writing JSON documents.

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Update Information:

Florian Weimer of the Red Hat Product Security Team found that the
hashing implementation in Jansson, a library for encoding, decoding and manipulating JSON data, was susceptible to predictable hash collisions.

A remote attacker could use this flaw to cause an application using Jansson to use an excessive amount of CPU time by sending a crafted JSON document containing a large number of parameters whose names map to the same hash value. (CVE-2013-6401)

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ChangeLog:

* Thu Feb 13 2014 Jared Smith <jsmith at fedoraproject.org> - 2.6-1
- Update to Jansson 2.6 for CVE-2013-6401
* Sat Jan 25 2014 Jiri Pirko <jpirko at redhat.com> 2.5-1
- Update to Jansson 2.5.
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References:

  [ 1 ] Bug #1063817 - CVE-2013-6401 jansson: hash table collisions CPU usage DoS [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1063817
  [ 2 ] Bug #1064201 - jansson-2.6 is available
        https://bugzilla.redhat.com/show_bug.cgi?id=1064201
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This update can be installed with the "yum" update program.  Use
su -c 'yum update jansson' 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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