[VIM] [Full-disclosure] ZDI-11-197: Microsoft Internet Explorer vgx.dll imagedata Remote Code Execution Vulnerability

security curmudgeon jericho at attrition.org
Wed Jun 15 04:02:34 CDT 2011


On Wed, 15 Jun 2011, OSF LISTS wrote:

: Believe this should be CVE-2011-1256. Confirm?

And on second glance..

http://www.zerodayinitiative.com/advisories/ZDI-11-197
CVE-2011-1266

http://www.zerodayinitiative.com/advisories/ZDI-11-193
CVE-2011-1256

Yet there are 2 MS IE vulns related to DOM manipulation:

2011-1256	Microsoft IE vgx.dll imagedata VML Object DOM Modification Memory Corruption
2011-1251	Microsoft IE DOM Manipulation Memory Corruption

Perhaps ZDI-11-197 is really CVE-2011-1251? Or did you issue two 
advisories for 2011-1256? 

: On Tue, Jun 14, 2011 at 1:25 PM, ZDI Disclosures <
: zdi-disclosures at tippingpoint.com> wrote:
: 
: > ZDI-11-197: Microsoft Internet Explorer vgx.dll imagedata Remote Code
: > Execution Vulnerability
: >
: > http://www.zerodayinitiative.com/advisories/ZDI-11-197
: >
: > June 14, 2011
: >
: > -- CVE ID:
: > CVE-2011-1266
: >
: > -- CVSS:
: > 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
: >
: > -- Affected Vendors:
: > Microsoft
: >
: > -- Affected Products:
: > Microsoft Internet Explorer 8
: >
: > -- TippingPoint(TM) IPS Customer Protection:
: > TippingPoint IPS customers have been protected against this
: > vulnerability by Digital Vaccine protection filter ID 11254.
: > For further product information on the TippingPoint IPS, visit:
: >
: >    http://www.tippingpoint.com
: >
: > -- Vulnerability Details:
: > This vulnerability allows remote attackers to execute arbitrary code on
: > vulnerable installations of Internet Explorer. User interaction is
: > required to exploit this vulnerability in that the target must visit a
: > malicious page or open a malicious file.
: >
: > The specific flaw exists within vgx.dll while parsing VML objects from
: > the DOM. Specifically, the faulty code exists while handling imagedata
: > parameters during page deconstruction. By dynamically assigning an
: > attribute to an imagedata object the process can be made to access freed
: > memory. Successful exploitation can lead to code execution under the
: > context of the application.
: >
: > -- Vendor Response:
: > Microsoft has issued an update to correct this vulnerability. More
: > details can be found at:
: >
: > http://www.microsoft.com/technet/security/Bulletin/MS11-052.mspx
: >
: > -- Disclosure Timeline:
: > 2011-01-21 - Vulnerability reported to vendor
: > 2011-06-14 - Coordinated public release of advisory
: >
: > -- Credit:
: > This vulnerability was discovered by:
: >    * Anonymous
: >
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: >
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: >
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