[SECURITY] Fedora 20 Update: libxml2-2.9.1-4.fc20

[updates at fedoraproject.org]

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Fedora Update Notification
FEDORA-2015-4719
2015-03-26 16:50:32
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Name        : libxml2
Product     : Fedora 20
Version     : 2.9.1
Release     : 4.fc20
URL         : http://xmlsoft.org/
Summary     : Library providing XML and HTML support
Description :
This library allows to manipulate XML files. It includes support
to read, modify and write XML and HTML files. There is DTDs support
this includes parsing and validation even with complex DtDs, either
at parse time or later once the document has been modified. The output
can be a simple SAX stream or and in-memory DOM like representations.
In this case one can use the built-in XPath and XPointer implementation
to select sub nodes or ranges. A flexible Input/Output mechanism is
available, with existing HTTP and FTP modules and combined to an
URI library.

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Update Information:

fixes built in also added a couple of other entities related
pacthes including a fix to CVE-2014-3660
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ChangeLog:

* Mon Mar 23 2015 Daniel Veillard <veillard at redhat.com> - 2.9.1-4
- Stop parsing on entities boundaries errors
- Fix missing entities after CVE-2014-3660 fix
- Do not fetch external parameter entities (CVE-2014-0191)
- Fix missing entities after CVE-2014-3660 fix
* Thu Oct 16 2014 Daniel Veillard <veillard at redhat.com> - 2.9.1-3
- CVE-2014-3660 billion laugh DOS
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References:

  [ 1 ] Bug #1090976 - CVE-2014-0191 libxml2: external parameter entity loaded when entity substitution is disabled
        https://bugzilla.redhat.com/show_bug.cgi?id=1090976
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This update can be installed with the "yum" update program.  Use
su -c 'yum update libxml2' 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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