Adobe Shockwave Director tSAC Chunk Remote Code Execution VulnerabilityTPTI-10-13: 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 the code responsible for parsing Director's RIFF-based file format. While parsing the tSAC chunk, the DIRAPI module does not properly verify the signedness of a count value within an undocumented structure. By providing a large enough negative value a pointer can be miscalculated leading to memory corruption. This can be exploited by a remote 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:
2010-05-27 - Vulnerability reported to vendor
2010-08-24 - Coordinated public release of advisory