CVE-2019-17454 : Exploit Details and Defense Strategies

Bento4 1.5.1.0 has a NULL pointer dereference vulnerability in the AP4_Descriptor::GetTag function in the Core/Ap4Descriptor.h file, related to the AP4_StsdAtom::GetSampleDescription function in the Core/Ap4StsdAtom.cpp file.

Understanding CVE-2019-17454

This CVE identifies a specific vulnerability in Bento4 1.5.1.0 that can lead to a NULL pointer dereference.

What is CVE-2019-17454?

The vulnerability occurs in the AP4_Descriptor::GetTag function in the Core/Ap4Descriptor.h file of Bento4 1.5.1.0. It is associated with the AP4_StsdAtom::GetSampleDescription function in the Core/Ap4StsdAtom.cpp file and can be exploited as demonstrated by mp4info.

The Impact of CVE-2019-17454

This vulnerability could be exploited by an attacker to cause a denial of service (DoS) or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2019-17454

Bento4 1.5.1.0 is susceptible to a NULL pointer dereference vulnerability.

Vulnerability Description

The vulnerability is due to improper handling of NULL pointers in the mentioned functions, which could be exploited by an attacker.

Affected Systems and Versions

Product: Bento4 1.5.1.0
Vendor: N/A
Versions: N/A

Exploitation Mechanism

The vulnerability can be exploited by manipulating certain parameters to trigger the NULL pointer dereference.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-17454.

Immediate Steps to Take

Apply vendor patches or updates as soon as they are available.
Monitor vendor communications for security advisories related to this vulnerability.

Long-Term Security Practices

Regularly update software and systems to ensure the latest security patches are in place.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Ensure that Bento4 is updated to a patched version that addresses the NULL pointer dereference vulnerability.