CVE-2019-6966 Explained : Impact and Mitigation
Learn about CVE-2019-6966 affecting Bento4 1.5.1-628. Discover the impact, technical details, affected systems, exploitation mechanism, and mitigation steps for this memory allocation vulnerability.
Bento4 1.5.1-628 revealed a problem where the AP4_ElstAtom class in Core/Ap4ElstAtom.cpp attempts to allocate an excessive amount of memory, specifically related to AP4_Array<AP4_ElstEntry>::EnsureCapacity in Core/Ap4Array.h. This issue can be seen in the behavior of the mp42hls module.
Understanding CVE-2019-6966
This CVE-2019-6966 vulnerability affects Bento4 1.5.1-628.
What is CVE-2019-6966?
CVE-2019-6966 is a memory allocation vulnerability in Bento4 1.5.1-628, specifically in the AP4_ElstAtom class in Core/Ap4ElstAtom.cpp.
The Impact of CVE-2019-6966
The vulnerability allows attackers to trigger excessive memory allocation, potentially leading to denial of service or arbitrary code execution.
Technical Details of CVE-2019-6966
This section provides technical details of the vulnerability.
Vulnerability Description
The issue lies in the AP4_ElstAtom class attempting excessive memory allocation related to AP4_Array<AP4_ElstEntry>::EnsureCapacity in Core/Ap4Array.h.
Affected Systems and Versions
- Product: Bento4 1.5.1-628
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability can be exploited by manipulating the behavior of the mp42hls module.
Mitigation and Prevention
Protect your systems from CVE-2019-6966 with the following steps:
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Monitor vendor communications for security advisories.
Long-Term Security Practices
- Implement least privilege access controls.
- Conduct regular security assessments and audits.
Patching and Updates
- Ensure timely installation of security patches and updates.