Re: ZDI-09-070: Microsoft Internet Explorer Event Object Type Double-Free Vulnerability

[啊賢. <underclasslv () gmail com>]

This  vulnerability can affected IE8?Isn't it mean that can bypass DEP+ASLR?

> Message: 14
> Date: Tue, 13 Oct 2009 14:24:43 -0500
> From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
> Subject: [Full-disclosure] ZDI-09-070: Microsoft Internet Explorer
>        Event Object Type Double-Free Vulnerability
> To: "Bugtraq (bugtraq () securityfocus com)" <bugtraq () securityfocus com>,
>        "Full   Disclosure (full-disclosure () lists grok org uk)"
>        <full-disclosure () lists grok org uk>
> Message-ID:
>        <EE499D69B3D0714590B6FE9762B046110381100C6C@emb01.unity.local>
> Content-Type: text/plain; charset="us-ascii"
>
> ZDI-09-070: Microsoft Internet Explorer Event Object Type Double-Free Vulnerability
> http://www.zerodayinitiative.com/advisories/ZDI-09-070
> October 13, 2009
>
> -- CVE ID:
> CVE-2009-2530
>
> -- Affected Vendors:
> Microsoft
>
> -- Affected Products:
> Microsoft Internet Explorer 6
> Microsoft Internet Explorer 7
> Microsoft Internet Explorer 8
>
> -- TippingPoint(TM) IPS Customer Protection:
> TippingPoint IPS customers have been protected against this
> vulnerability by Digital Vaccine protection filter ID 8653.
> 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 Microsoft Internet Explorer. User
> interaction is required to exploit this vulnerability in that the target
> must visit a malicious page.
>
> The specific flaw exists within the copy constructor for a specific DOM
> object. When duplicated, more than one reference can be made of anything
> assigned to it's properties. When the variable/object goes out of scope,
> these properties will be deallocated twice. This results in a heap
> corruption which can lead to code execution under the context of the
> current user.
>
> -- Vendor Response:
> Microsoft has issued an update to correct this vulnerability. More
> details can be found at:
>
> http://www.microsoft.com/technet/security/bulletin/ms09-054.mspx
>
> -- Disclosure Timeline:
> 2009-06-23 - Vulnerability reported to vendor
> 2009-10-13 - Coordinated public release of advisory
>
> -- Credit:
> This vulnerability was discovered by:
>    * Anonymous
>    * Anonymous
>
> -- About the Zero Day Initiative (ZDI):
> Established by TippingPoint, The Zero Day Initiative (ZDI) represents
> a best-of-breed model for rewarding security researchers for responsibly
> disclosing discovered vulnerabilities.
>
> Researchers interested in getting paid for their security research
> through the ZDI can find more information and sign-up at:
>
>    http://www.zerodayinitiative.com
>
> The ZDI is unique in how the acquired vulnerability information is
> used. TippingPoint does not re-sell the vulnerability details or any
> exploit code. Instead, upon notifying the affected product vendor,
> TippingPoint provides its customers with zero day protection through
> its intrusion prevention technology. Explicit details regarding the
> specifics of the vulnerability are not exposed to any parties until
> an official vendor patch is publicly available. Furthermore, with the
> altruistic aim of helping to secure a broader user base, TippingPoint
> provides this vulnerability information confidentially to security
> vendors (including competitors) who have a vulnerability protection or
> mitigation product.
>
> Our vulnerability disclosure policy is available online at:
>
>    http://www.zerodayinitiative.com/advisories/disclosure_policy/
>
>
> ------------------------------
>
> Message: 15
> Date: Tue, 13 Oct 2009 14:24:45 -0500
> From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
> Subject: [Full-disclosure] ZDI-09-071: Microsoft Internet Explorer
>        writing-mode Memory Corruption Vulnerability
> To: "Bugtraq (bugtraq () securityfocus com)" <bugtraq () securityfocus com>,
>        "Full   Disclosure (full-disclosure () lists grok org uk)"
>        <full-disclosure () lists grok org uk>
> Message-ID:
>        <EE499D69B3D0714590B6FE9762B046110381100C6D@emb01.unity.local>
> Content-Type: text/plain; charset="us-ascii"
>
> ZDI-09-071: Microsoft Internet Explorer writing-mode Memory Corruption Vulnerability
> http://www.zerodayinitiative.com/advisories/ZDI-09-071
> October 13, 2009
>
> -- CVE ID:
> CVE-2009-2531
>
> -- Affected Vendors:
> Microsoft
>
> -- Affected Products:
> Microsoft Internet Explorer 6
> Microsoft Internet Explorer 7
> Microsoft Internet Explorer 8
>
> -- TippingPoint(TM) IPS Customer Protection:
> TippingPoint IPS customers have been protected against this
> vulnerability by Digital Vaccine protection filter ID 8654.
> 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 Microsoft Internet Explorer. User
> interaction is required in that a user must visit a malicious web page.
>
> The specific flaw exists in the parsing of CSS style information. When a
> writing-mode style is used with a specific combination of HTML tags,
> memory corruption occurs. Exploitation of this vulnerability will lead
> to remote system compromise under the credentials of the currently
> logged in user.
>
> -- Vendor Response:
> Microsoft has issued an update to correct this vulnerability. More
> details can be found at:
>
> http://www.microsoft.com/technet/security/bulletin/ms09-054.mspx
>
> -- Disclosure Timeline:
> 2009-06-23 - Vulnerability reported to vendor
> 2009-10-13 - Coordinated public release of advisory
>
> -- Credit:
> This vulnerability was discovered by:
>    * Sam Thomas of eshu.co.uk
>
> -- About the Zero Day Initiative (ZDI):
> Established by TippingPoint, The Zero Day Initiative (ZDI) represents
> a best-of-breed model for rewarding security researchers for responsibly
> disclosing discovered vulnerabilities.
>
> Researchers interested in getting paid for their security research
> through the ZDI can find more information and sign-up at:
>
>    http://www.zerodayinitiative.com
>
> The ZDI is unique in how the acquired vulnerability information is
> used. TippingPoint does not re-sell the vulnerability details or any
> exploit code. Instead, upon notifying the affected product vendor,
> TippingPoint provides its customers with zero day protection through
> its intrusion prevention technology. Explicit details regarding the
> specifics of the vulnerability are not exposed to any parties until
> an official vendor patch is publicly available. Furthermore, with the
> altruistic aim of helping to secure a broader user base, TippingPoint
> provides this vulnerability information confidentially to security
> vendors (including competitors) who have a vulnerability protection or
> mitigation product.
>
> Our vulnerability disclosure policy is available online at:
>
>    http://www.zerodayinitiative.com/advisories/disclosure_policy/
>
>
> ------------------------------
can

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