CVE-2019-13959 : Exploit Details and Defense Strategies

In the Bento4 version 1.5.1-627, a vulnerability exists in the AP4_DataBuffer::SetDataSize function, leading to memory copy operations into a NULL pointer. This issue is distinct from CVE-2018-20186.

Understanding CVE-2019-13959

This CVE involves a specific vulnerability in the Bento4 software version 1.5.1-627.

What is CVE-2019-13959?

CVE-2019-13959 is a security flaw in Bento4 1.5.1-627 where the AP4_DataBuffer::SetDataSize function fails to handle reallocation failures, resulting in memory copy operations into a NULL pointer.

The Impact of CVE-2019-13959

The vulnerability allows attackers to perform memory copy operations into a NULL pointer, potentially leading to crashes, denial of service, or arbitrary code execution.

Technical Details of CVE-2019-13959

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The issue arises from the inadequate handling of reallocation failures in the AP4_DataBuffer::SetDataSize function, enabling memory copy operations into a NULL pointer.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 1.5.1-627

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious inputs to trigger reallocation failures, leading to memory copy operations into a NULL pointer.

Mitigation and Prevention

To address CVE-2019-13959, follow these mitigation strategies:

Immediate Steps to Take

Apply the latest patches or updates provided by the software vendor.
Monitor security advisories for any new information or patches related to this vulnerability.

Long-Term Security Practices

Implement secure coding practices to prevent similar memory-related vulnerabilities.
Conduct regular security assessments and code reviews to identify and address potential vulnerabilities.

Patching and Updates

Regularly update the Bento4 software to the latest version to ensure that security patches are applied.