CVE-2022-3785 in Bento4
Summary
by MITRE • 11/01/2022
A vulnerability, which was classified as critical, has been found in Axiomatic Bento4. Affected by this issue is the function AP4_DataBuffer::SetDataSize of the component Avcinfo. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-212564.
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Analysis
by VulDB Data Team • 11/30/2022
The vulnerability identified as CVE-2022-3785 represents a critical heap-based buffer overflow in the Axiomatic Bento4 multimedia processing library, specifically within the AP4_DataBuffer::SetDataSize function of the Avcinfo component. This flaw resides in the core data handling mechanisms of the software, which is widely used for processing and manipulating multimedia content including video and audio files. The vulnerability stems from inadequate bounds checking when managing memory allocation for data buffers, creating a scenario where maliciously crafted input can cause the application to write beyond allocated memory boundaries. The heap-based nature of this overflow means that the vulnerability can be exploited to corrupt adjacent memory regions, potentially leading to arbitrary code execution or application crashes that could be leveraged for more sophisticated attacks.
The attack vector for this vulnerability is remote, meaning that an attacker can exploit it without requiring physical access to the target system. This remote exploit capability significantly increases the threat surface and makes the vulnerability particularly dangerous in networked environments where multimedia files are processed or transmitted. The exploit has been publicly disclosed and is actively available, which means that threat actors can readily leverage this vulnerability without requiring advanced technical skills or expensive exploit development. The vulnerability's classification as critical indicates that it poses a severe risk to system integrity and can potentially be used to gain unauthorized access to systems or disrupt services. The VDB-212564 identifier confirms that this vulnerability has been catalogued in vulnerability databases and is recognized by security researchers and organizations worldwide.
The operational impact of CVE-2022-3785 extends beyond simple application instability, as the heap-based buffer overflow can enable attackers to execute arbitrary code on vulnerable systems. This vulnerability affects any application or service that relies on Axiomatic Bento4 for multimedia processing, including content management systems, streaming platforms, media servers, and digital rights management solutions. The potential for remote code execution means that attackers could gain full control over affected systems, leading to data breaches, system compromise, or deployment of additional malware. The vulnerability's presence in Avcinfo component suggests that it specifically impacts video processing workflows where AVC (Advanced Video Coding) information is handled, making it particularly concerning for media production and distribution environments. Organizations using Bento4 for processing video content must consider the risk of attackers uploading malicious files that trigger this vulnerability during normal processing operations.
Mitigation strategies for this vulnerability should include immediate patching of all affected systems running Axiomatic Bento4 software, as this represents the most effective defense against exploitation. Organizations should also implement network segmentation and access controls to limit exposure of systems that process multimedia content, reducing the attack surface available to potential adversaries. Input validation and sanitization measures should be strengthened to prevent malicious data from reaching vulnerable functions within the Bento4 library. Additionally, monitoring systems should be deployed to detect anomalous behavior that might indicate exploitation attempts, including unusual memory allocation patterns or unexpected application crashes. The vulnerability aligns with CWE-121, heap-based buffer overflow, and could potentially map to ATT&CK techniques involving code injection and privilege escalation. Security teams should also consider implementing application whitelisting and runtime protection mechanisms to prevent exploitation even if patching cannot be completed immediately, while maintaining continuous vulnerability assessments to identify similar issues in other components of their multimedia processing pipelines.