Otkriven je novi sigurnosni propust u radu programskog paketa Libxml2, distribuiranog s operacijskim sustavom Fedora 14. Radi se o programskoj biblioteci koja se koristi za rukovanje XML datotekama. Propust je posljedica tzv. "double free" ranjivosti. Udaljeni napadač može ga iskoristiti za izvođenje napada uskraćivanjem usluga (eng. Denial of Service). Budući da su dostupna nova programska rješenja koja ispravljaju spomenuti propust, svim se korisnicima, u svrhu zaštite, savjetuje njihova instalacija.

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Fedora Update Notification
FEDORA-2011-2697
2011-03-05 01:43:01
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Name        : libxml2
Product     : Fedora 14
Version     : 2.7.7
Release     : 3.fc14
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 subnodes 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 a possible double free in XPath evaluation
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ChangeLog:

* Fri Mar  4 2011 Daniel Veillard <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> - 2.7.7-3
- fix a double free in XPath CVE-2010-4494 bug 665965
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References:

  [ 1 ] Bug #665963 - CVE-2010-4494 libxml2: Memory corruption (double-free) in
XPath processing code
        https://bugzilla.redhat.com/show_bug.cgi?id=665963
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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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