CVE-2019-9544 : Exploit Details and Defense Strategies

Bento4 version 1.5.1-628 has a vulnerability that allows an out-of-bounds write operation in the AP4_CttsTableEntry::AP4_CttsTableEntry() function, potentially leading to a Denial of Service (DoS) attack or other unspecified consequences.

Understanding CVE-2019-9544

This CVE involves a vulnerability in Bento4 version 1.5.1-628 that can be exploited to cause a Denial of Service or other impacts.

What is CVE-2019-9544?

CVE-2019-9544 is a vulnerability in Bento4 version 1.5.1-628 that allows an attacker to trigger an out-of-bounds write operation in a specific function, leading to potential service disruption or other consequences.

The Impact of CVE-2019-9544

Exploiting this vulnerability can result in a Denial of Service (Segmentation fault) or potentially have other unspecified consequences.

Technical Details of CVE-2019-9544

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Bento4 version 1.5.1-628 allows an out-of-bounds write operation in the AP4_CttsTableEntry::AP4_CttsTableEntry() function located in the Core/Ap4Array.h file.

Affected Systems and Versions

Affected Version: 1.5.1-628
Affected Component: AP4_CttsTableEntry::AP4_CttsTableEntry() function

Exploitation Mechanism

Exploiting this vulnerability involves sending a specially crafted file to the mp42hls binary.

Mitigation and Prevention

To address CVE-2019-9544, follow these mitigation strategies:

Immediate Steps to Take

Apply vendor patches or updates promptly.
Monitor security advisories for any new information.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflows.
Conduct regular security assessments and code reviews.

Patching and Updates

Update Bento4 to a patched version that addresses the vulnerability.