CVE-2020-35979 : Exploit Details and Defense Strategies

An issue was discovered in GPAC version 0.8.0 and 1.0.1. There is a heap-based buffer overflow in the function gp_rtp_builder_do_avc() in ietf/rtp_pck_mpeg4.c.

Understanding CVE-2020-35979

This CVE involves a heap-based buffer overflow vulnerability in GPAC versions 0.8.0 and 1.0.1.

What is CVE-2020-35979?

The vulnerability exists in the function gp_rtp_builder_do_avc() in ietf/rtp_pck_mpeg4.c, allowing attackers to trigger a buffer overflow.

The Impact of CVE-2020-35979

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

Technical Details of CVE-2020-35979

This section provides more technical insights into the CVE.

Vulnerability Description

The issue involves a heap-based buffer overflow in the specified function within GPAC.

Affected Systems and Versions

GPAC version 0.8.0
GPAC version 1.0.1

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input to trigger the buffer overflow, potentially leading to code execution or DoS.

Mitigation and Prevention

Protecting systems from CVE-2020-35979 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Consider implementing network-level protections to filter out potentially malicious traffic.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users and administrators about secure coding practices and the importance of cybersecurity.
Implement strong access controls and least privilege principles to limit the impact of potential attacks.
Stay informed about emerging threats and security best practices.

Patching and Updates

Ensure that GPAC is updated to a version that includes a fix for the heap-based buffer overflow vulnerability.