ZDI-10-192: Adobe Acrobat Reader ICC mluc Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-192 October 6, 2010 -- CVE ID: CVE-2010-3622 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: Adobe -- Affected Products: Adobe Reader -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Reader. User interaction is required in that a target must be coerced into opening a file or visiting a web page. The specific flaw exists within the ACE.dll module responsible for parsing ICC streams. Within the 'desc' tag there exists an embedded 'mluc' data structure. The code within ACE performs arithmetic on the second DWORD from the mluc structure and a value from the desc structure. The resulting integer is used for an allocation of a heap-based buffer. An attacker can forge these values to force the process to under-allocate this buffer and later overflow it during a copy operation. This leads to remote code execution under the context of the user running the application. -- Vendor Response: Adobe has issued an update to correct this vulnerability. More details can be found at: http://www.adobe.com/support/security/bulletins/apsb10-21.html -- Disclosure Timeline: 2010-06-23 - Vulnerability reported to vendor 2010-10-06 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Sebastian Apelt (www.siberas.de) -- 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/ Follow the ZDI on Twitter: http://twitter.com/thezdi