From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Jan 09 2007 - 04:17:05 CST

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Secunia is proud to announce the availability of the Secunia Software
Inspector.

The Secunia Software Inspector is a free service that detects insecure
versions of software that you may have installed in your system. When
insecure versions are detected, the Secunia Software Inspector also
provides thorough guidelines for updating the software to the latest
secure version from the vendor.

Try it out online:
http://secunia.com/software_inspector/

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TITLE:
Internet Explorer Memory Corruption Weakness

SECUNIA ADVISORY ID:
SA23655

VERIFY ADVISORY:
http://secunia.com/advisories/23655/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
From remote

SOFTWARE:
Microsoft Internet Explorer 6.x
http://secunia.com/product/11/

DESCRIPTION:
Michal Zalewski has discovered a weakness in Internet Explorer, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The weakness is caused due to a race condition when reloading XML
files in iframes. This can be exploited to corrupt memory via
specially crafted XML files with nested tags.

Successful exploitation crashes the browser. Execution of arbitrary
code has not been proven, but cannot be completely ruled out.

NOTE: Secunia normally doesn't classify a browser crash as a
vulnerability nor issue an advisory about it. However, the potential
risk of this issue may be more severe than currently believed, which
justifies an advisory being issued.

The weakness is confirmed on fully patched Microsoft Windows XP SP2
and Windows 2000 SP4 systems with IE 6.0. Other versions may also be
affected.

SOLUTION:
Do not browse untrusted sites.

PROVIDED AND/OR DISCOVERED BY:
Michal Zalewski

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/051620.html

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About:
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