Sicherheit: Denial of Service in expat
Aktuelle Meldungen Distributionen
Name: Denial of Service in expat
ID: FEDORA-2012-4936
Distribution: Fedora
Plattformen: Fedora 17
Datum: Do, 12. April 2012, 09:09
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0876
Applikationen: expat


Name        : expat
Product : Fedora 17
Version : 2.1.0
Release : 1.fc17
URL : http://www.libexpat.org/
Summary : An XML parser library
Description :
This is expat, the C library for parsing XML, written by James Clark. Expat
is a stream oriented XML parser. This means that you register handlers with
the parser prior to starting the parse. These handlers are called when the
parser discovers the associated structures in the document being parsed. A
start tag is an example of the kind of structures for which you may
register handlers.

Update Information:

This update includes expat 2.1.0, which fixes includes a fix for a security

A specially-crafted set of keys could trigger hash function collisions, which
degrade dictionary performance by changing hash table operations complexity from an expected/average O(1) to the worst case O(n). Reporters were able to find colliding strings efficiently using meet in the middle attack. (CVE-2012-0876)


[ 1 ] Bug #806602 - expat-2.1.0 is available

This update can be installed with the "yum" update program. Use
su -c 'yum update expat' 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
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