ZDI-09-042: Adobe Reader U3D RHAdobeMeta Stack Overflow Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-09-042 June 10, 2009 -- CVE ID: CVE-2009-1855 -- Affected Vendors: Adobe -- Affected Products: Adobe Acrobat -- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat and Adobe Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious web address or open a malicious file. The specific flaw exists when parsing malformed U3D model files contained in a PDF. When a specially crafted extension block of a model is processed, insufficient bounds checking is done before a call to wcsncpy(). Because of this a stack overflow can occur resulting in reliable code execution. Proper exploitation of this vulnerability will result in system compromise under the credentials of the currently logged in user. -- Vendor Response: Adobe has issued an update to correct this vulnerability. More details can be found at: http://www.adobe.com/support/security/bulletins/apsb09-07.html -- Disclosure Timeline: 2009-02-24 - Vulnerability reported to vendor 2009-06-10 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * 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/
