CVE-2009-3812 in Otsav Tv
Summary
by MITRE
Heap-based buffer overflow in OtsAV DJ trial version 1.85.64.0, Radio trial version 1.85.64.0, TV trial version 1.85.64.0, and Free version 1.77.001 allows remote attackers to execute arbitrary code via a long playlist in an Ots File List (.ofl) file.
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Analysis
by VulDB Data Team • 12/03/2024
The vulnerability identified as CVE-2009-3812 represents a critical heap-based buffer overflow flaw affecting multiple versions of OtsAV software across different product lines including DJ, Radio, TV trial versions and the Free version. This vulnerability specifically targets the handling of playlist data within Ots File List (.ofl) files, creating a potential remote code execution vector that could be exploited by malicious actors. The flaw exists in the software's memory management system where insufficient bounds checking occurs when processing excessively long playlist entries, allowing attackers to overwrite adjacent memory locations with malicious code payloads. The vulnerability affects versions 1.85.64.0 of the trial editions and version 1.77.001 of the free version, indicating a widespread issue across the product family that could impact numerous users operating these specific software versions.
The technical implementation of this vulnerability stems from improper input validation within the playlist parsing mechanism of OtsAV software. When the application processes an .ofl file containing an excessively long playlist entry, the heap memory allocation fails to properly verify the length of the input data before copying it into fixed-size buffers. This classic buffer overflow condition occurs because the software does not implement adequate bounds checking or sanitization of user-supplied playlist data, allowing an attacker to craft a malicious .ofl file with oversized playlist entries that exceed the allocated buffer space. The heap-based nature of this overflow means that the memory corruption affects the program's heap allocation structures, potentially enabling attackers to manipulate program execution flow through controlled memory overwrite attacks. This vulnerability aligns with CWE-121, heap-based buffer overflow, and represents a significant weakness in the software's defensive programming practices.
The operational impact of CVE-2009-3812 extends beyond simple denial of service scenarios, as it provides attackers with the capability to execute arbitrary code on vulnerable systems. Remote exploitation of this vulnerability means that an attacker could distribute malicious .ofl files through various channels including email attachments, malicious websites, or peer-to-peer networks, without requiring local access to the target system. Successful exploitation could result in complete system compromise, allowing attackers to install malware, steal sensitive data, or establish persistent backdoors. The vulnerability affects users who may unknowingly open malicious playlist files, making it particularly dangerous in environments where users frequently exchange media files or where the software is used in automated playlist generation systems. Organizations relying on these audio/video processing applications for professional use cases face significant risk, as the vulnerability could be exploited to gain unauthorized access to systems processing sensitive content or critical business data.
Mitigation strategies for this vulnerability should focus on immediate software updates and deployment of patches provided by the vendor, as well as implementing defensive measures to prevent execution of untrusted playlist files. System administrators should prioritize patch management to ensure all affected versions are updated to patched releases that include proper input validation and bounds checking mechanisms. Network security controls including email filtering and web content filtering should be enhanced to block .ofl files from untrusted sources, while endpoint protection solutions should be configured to monitor for suspicious file execution patterns. Additionally, users should be educated about the risks of opening playlist files from unknown sources and the importance of maintaining current software versions. The vulnerability demonstrates the importance of secure coding practices and input validation, particularly in applications that process user-supplied data files, aligning with ATT&CK technique T1059.007 for command and scripting interpreter execution through malformed file processing. Organizations should also implement network segmentation and access controls to limit the potential impact of successful exploitation attempts.