CVE-2020-22678 : Security Advisory and Response

An issue was discovered in gpac 0.8.0 that can lead to a denial of service (DOS) due to a heap-based buffer overflow in the gf_media_nalu_remove_emulation_bytes function in av_parsers.c.

Understanding CVE-2020-22678

This CVE identifies a vulnerability in gpac 0.8.0 that could be exploited to cause a denial of service through a crafted input.

What is CVE-2020-22678?

The vulnerability in gpac 0.8.0 allows for a heap-based buffer overflow in the gf_media_nalu_remove_emulation_bytes function, potentially resulting in a denial of service attack when processing specially crafted input.

The Impact of CVE-2020-22678

The heap-based buffer overflow in gpac 0.8.0 could be exploited by an attacker to cause a denial of service condition on the affected system, disrupting normal operations.

Technical Details of CVE-2020-22678

This section provides more technical insights into the vulnerability.

Vulnerability Description

The gf_media_nalu_remove_emulation_bytes function in av_parsers.c in gpac 0.8.0 is susceptible to a heap-based buffer overflow, which could be triggered by malicious input data.

Affected Systems and Versions

Affected Product: gpac 0.8.0
Affected Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by an attacker sending specially crafted input to trigger the heap-based buffer overflow, leading to a denial of service condition.

Mitigation and Prevention

Protecting systems from CVE-2020-22678 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the vendor to address the vulnerability.
Implement network-level protections to filter out potentially malicious input.

Long-Term Security Practices

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

Patching and Updates

Check for patches or updates released by gpac to fix the heap-based buffer overflow vulnerability in version 0.8.0.