Trillian IMG SRC ID Memory Corruption Vulnerability

2008.12.11
Credit: ZDI
Risk: High
Local: No
Remote: Yes
CWE: CWE-399


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

ZDI-08-078: Trillian IMG SRC ID Memory Corruption Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-08-078 December 4, 2008 -- Affected Vendors: Cerulean Studios -- Affected Products: Cerulean Studios Trillian -- Vulnerability Details: This vulnerability allows remote attackers to potentially execute arbitrary code on vulnerable installations of Cerulean Studios Trillian. Authentication is not required to exploit this vulnerability. The specific flaw exists within the XML processing code for Trillian. When parsing specially formulated xml, the application will corrupt an internal data structure. Whilst deallocating this data structure, the application can be tricked into freeing a single allocated chunk multiple times, which can potentially lead to code execution. -- Vendor Response: Trillian has issued an update to correct this vulnerability. More details can be found at: http://blog.ceruleanstudios.com/?p=404 -- Disclosure Timeline: 2008-11-10 - Vulnerability reported to vendor 2008-12-04 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Damian Put -- 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/ CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is being sent by 3Com for the sole use of the intended recipient(s) and may contain confidential, proprietary and/or privileged information. Any unauthorized review, use, disclosure and/or distribution by any recipient is prohibited. If you are not the intended recipient, please delete and/or destroy all copies of this message regardless of form and any included attachments and notify 3Com immediately by contacting the sender via reply e-mail or forwarding to 3Com at postmaster (at) 3com (dot) com. [email concealed]

References:

http://www.zerodayinitiative.com/advisories/ZDI-08-078
http://blog.ceruleanstudios.com/?p=404


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