ZDI-10-114: Adobe Flash Player AVM2 getouterscope Opcode Remote Code Execution Vulnerability Jun 25 2010 04:17PM
ZDI Disclosures (zdi-disclosures tippingpoint com)
ZDI-10-114: Adobe Flash Player AVM2 getouterscope Opcode Remote Code Execution Vulnerability
June 25, 2010

-- CVE ID:

-- Affected Vendors:

-- Affected Products:
Adobe Flash Player

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 8499.
For further product information on the TippingPoint IPS, visit:


-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of Adobe Flash Player. User interaction is
required in that a target must visit a malicious web page.

The specific vulnerability exists within the parsing of an undocumented
opcode within Adobe's ActionScript Virtual Machine 2 bytecode. The
operand to this opcode is used as an offset to a structure and if set to
a malicious value can be pointed to attacker controlled data. The
structure contains a function pointer that is later called. If an
attacker modifies the controlled data pointed to by the invalid offset,
this function pointer can be set to point to malicious code thus gaining
execution under the context of the user running the browser.

-- Vendor Response:
Adobe has issued an update to correct this vulnerability. More
details can be found at:


-- Disclosure Timeline:

2010-06-25 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* Dionysus Blazakis

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