CVE-2017-12476 Explained : Impact and Mitigation
Learn about CVE-2017-12476, a vulnerability in Bento4 mp4dump allowing denial of service via crafted mp4 files. Find mitigation steps and long-term security practices here.
A crafted mp4 file can lead to a denial of service (application crash) by exploiting the AP4_AvccAtom::InspectFields function in Core/Ap4AvccAtom.cpp in Bento4 mp4dump prior to version 1.5.0-616, resulting in a NULL pointer dereference.
Understanding CVE-2017-12476
This CVE entry describes a vulnerability in Bento4 mp4dump that could be exploited by a crafted mp4 file to cause a denial of service.
What is CVE-2017-12476?
The vulnerability in Bento4 mp4dump allows remote attackers to trigger a NULL pointer dereference and application crash by using a specially crafted mp4 file.
The Impact of CVE-2017-12476
Exploiting this vulnerability can lead to a denial of service, causing the application to crash, potentially disrupting services or operations relying on the affected software.
Technical Details of CVE-2017-12476
This section provides more technical insights into the CVE.
Vulnerability Description
The issue lies in the AP4_AvccAtom::InspectFields function in Core/Ap4AvccAtom.cpp in Bento4 mp4dump before version 1.5.0-616, allowing attackers to exploit a crafted mp4 file for a NULL pointer dereference.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions of Bento4 mp4dump prior to 1.5.0-616
Exploitation Mechanism
Attackers can exploit this vulnerability by providing a specially crafted mp4 file to trigger the NULL pointer dereference, leading to a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-12476 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Bento4 mp4dump to version 1.5.0-616 or later to mitigate the vulnerability.
- Avoid opening or processing untrusted mp4 files.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Implement file validation mechanisms to detect and block malicious files.
Patching and Updates
Ensure timely patching of software and systems to address known vulnerabilities and enhance overall security.