CVE-2012-0916 in RenRen Talk
Summary
by MITRE
Heap-based buffer overflow in RenRen Talk 2.9 allows remote attackers to execute arbitrary code via a crafted image in a chat message, as demonstrated using a PNG file.
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Analysis
by VulDB Data Team • 01/26/2018
The vulnerability identified as CVE-2012-0916 represents a critical heap-based buffer overflow flaw in RenRen Talk 2.9, a popular instant messaging application used primarily in China. This vulnerability exists within the image processing functionality of the software, specifically when handling PNG file formats in chat messages. The flaw enables remote attackers to execute arbitrary code on affected systems through the simple act of sending a maliciously crafted image file within a chat conversation, making it particularly dangerous in social networking environments where users frequently exchange multimedia content.
The technical nature of this vulnerability stems from improper bounds checking during the parsing of PNG image files within the RenRen Talk client application. When the software encounters a crafted PNG file in a chat message, the buffer overflow occurs in the heap memory allocation process, allowing an attacker to overwrite adjacent memory locations with malicious data. This type of vulnerability falls under CWE-121, heap-based buffer overflow, which is classified as a critical weakness in memory safety. The attack vector is particularly insidious because it requires no user interaction beyond receiving the chat message, making it a perfect candidate for automated exploitation campaigns. The vulnerability demonstrates a classic case of insufficient input validation and memory management practices that violate fundamental security principles.
The operational impact of CVE-2012-0916 extends far beyond simple code execution, as it provides attackers with complete control over affected systems. Once successfully exploited, the malicious code can perform a wide range of harmful activities including but not limited to data theft, system reconnaissance, privilege escalation, and persistent backdoor installation. The vulnerability affects users of RenRen Talk 2.9 across multiple operating systems including Windows, macOS, and Linux platforms, making it a widespread threat within the user base. The attack scenario aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as the executed code can leverage various system interfaces to maintain persistence and exfiltrate data. Organizations and individuals using the affected software face significant risk of compromise, particularly in enterprise environments where social networking applications are commonly used.
Mitigation strategies for CVE-2012-0916 should focus on immediate patching of the vulnerable software, as the original vendor has released updates to address the heap overflow vulnerability. System administrators should implement network monitoring to detect suspicious chat traffic patterns and image file transfers that may indicate exploitation attempts. The use of network segmentation and application whitelisting can help reduce the attack surface by limiting the execution of untrusted code. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar memory corruption issues in other applications. Organizations should also consider implementing email and chat filtering solutions that can block or quarantine suspicious image files before they reach end users. The vulnerability serves as a reminder of the importance of secure coding practices and proper input validation in multimedia processing components, particularly when dealing with untrusted file formats that require extensive parsing and memory allocation.