CVE-2018-14587 in Bento4
Summary
by MITRE
An issue has been discovered in Bento4 1.5.1-624. AP4_MemoryByteStream::WritePartial in Core/Ap4ByteStream.cpp has a buffer over-read.
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Analysis
by VulDB Data Team • 04/25/2023
The vulnerability identified as CVE-2018-14587 represents a critical buffer over-read flaw within the Bento4 multimedia framework version 1.5.1-624. This issue specifically affects the AP4_MemoryByteStream::WritePartial function located in the Core/Ap4ByteStream.cpp source file. The flaw arises from inadequate bounds checking during memory operations, creating a potential avenue for malicious exploitation that could compromise system integrity and security.
This buffer over-read vulnerability falls under the Common Weakness Enumeration category CWE-125, which describes "Out-of-bounds Read" conditions where a program reads data past the end of a valid buffer region. The technical implementation flaw occurs when the WritePartial method processes memory byte streams without proper validation of buffer boundaries, allowing an attacker to potentially access adjacent memory locations. The vulnerability manifests when malformed input data is processed through the AP4_MemoryByteStream interface, causing the application to read beyond allocated memory segments.
The operational impact of this vulnerability extends beyond simple memory corruption, as it creates potential pathways for remote code execution and system compromise. When exploited, the buffer over-read could enable attackers to extract sensitive information from adjacent memory regions, potentially revealing cryptographic keys, authentication tokens, or other confidential data. The vulnerability affects systems that utilize Bento4 for processing multimedia content, particularly those handling untrusted input streams such as video files, audio tracks, or streaming media. Attackers could craft specially formatted media files to trigger the over-read condition during normal playback or processing operations, making this a significant concern for media processing applications.
Mitigation strategies for CVE-2018-14587 should prioritize immediate patching of affected Bento4 installations to version 1.5.1-625 or later, which contains the necessary bounds checking fixes. Organizations should implement defensive programming practices including input validation, memory boundary checks, and regular security audits of multimedia processing pipelines. The vulnerability demonstrates the importance of adhering to secure coding practices as outlined in the ATT&CK framework's defensive techniques for preventing memory corruption attacks. System administrators should also consider implementing network segmentation and access controls to limit exposure, while monitoring for anomalous behavior that might indicate exploitation attempts. Additionally, regular security assessments of multimedia processing workflows and dependency management practices should be enhanced to prevent similar vulnerabilities from emerging in other components of the software ecosystem.