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Date: Thu, 08 Mar 2012 22:01:38 -0700
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
Subject: expat 2.1.0beta fixes 5 Denial of Service attacks, CVE's/details
 inside

So expat is releasing an update (2.0.1 -> 2.1.0) which is the first one
in a while (which is a testament to the stability and reliability of
expat). If you want to help Karl Waclawek (karl@...lawek.net), the
author of expat out (and by extension pretty much everyone using Open
Source that parses xml using expat which is a lot of stuff), please test
the 2.1.0beta and send him feedback (works, doesn't work, etc.). Two of
the issues were already assigned CVE's back in 2009, the rest got 2012
because that where we are now.

Changes in Expat 2.1.0beta:

#2895533: CVE-2012-1147 - Resource leak in readfilemap.c.
http://mail.python.org/pipermail/expat-bugs/2009-November/002858.html
http://sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127
https://bugzilla.redhat.com/show_bug.cgi?id=801634

#1990430: CVE-2009-3720 - Parser crash with specially formatted UTF-8
sequences.
http://mail.python.org/pipermail/expat-bugs/2009-January/002781.html
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=1990430&group_id=10127
https://bugzilla.redhat.com/show_bug.cgi?id=531697

#2894085: CVE-2009-3560 - Buffer over-read and crash in big2_toUtf8().
http://mail.python.org/pipermail/expat-bugs/2009-November/002846.html
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=2894085&group_id=10127
https://bugzilla.redhat.com/show_bug.cgi?id=533174

#2958794: CVE-2012-1148 - Memory leak in poolGrow.
http://mail.python.org/pipermail/expat-bugs/2010-February/002870.html
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=2958794&group_id=10127
https://bugzilla.redhat.com/show_bug.cgi?id=801648

#3496608: CVE-2012-0876 - Hash DOS attack.
http://blog.gmane.org/gmane.text.xml.expat.bugs/month=20120301
http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
https://bugzilla.redhat.com/show_bug.cgi?id=786617


-- 
Kurt Seifried Red Hat Security Response Team (SRT)

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