Adobe Shockwave CSWV Chunk Memory Corruption Remote Code Execution VulnerabilityTPTI-10-09: August 24th, 2010
Vulnerability DetailsThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Shockwave Player. 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 IML32X.dll and DIRAPIX.dll which are responsible for parsing the Director movies, a RIFF-based file format. The code trusts a value from the file as a count and performs an endian-flipping loop on data in heap memory. If the value is large enough the process can be made to seek outside the bounds of the allocation and thus corrupt memory in a controlled fashion. This can be leveraged by an attacker to execute arbitrary code under the context of the user running the web browser.
Vendor ResponseAdobe has issued an update to correct this vulnerability. More details can be found at:
2010-08-11 - Vulnerability reported to vendor
2010-08-24 - Coordinated public release of advisory