CVE-2020-13900 : What You Need to Know

An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0. janus_sdp_preparse in sdp.c has a NULL pointer dereference.

Understanding CVE-2020-13900

This CVE involves a vulnerability in janus-gateway that can lead to a NULL pointer dereference.

What is CVE-2020-13900?

CVE-2020-13900 is a vulnerability found in janus-gateway up to version 0.10.0, specifically in the janus_sdp_preparse function in sdp.c, resulting in a NULL pointer dereference.

The Impact of CVE-2020-13900

The vulnerability could potentially lead to a denial of service (DoS) condition or other security issues due to the NULL pointer dereference.

Technical Details of CVE-2020-13900

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

Vulnerability Description

The vulnerability in janus-gateway through version 0.10.0 allows for a NULL pointer dereference in the janus_sdp_preparse function in sdp.c.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: up to 0.10.0

Exploitation Mechanism

The vulnerability can be exploited by an attacker to trigger the NULL pointer dereference in the janus_sdp_preparse function.

Mitigation and Prevention

Protecting systems from CVE-2020-13900 requires specific actions to mitigate the risk.

Immediate Steps to Take

Update janus-gateway to a version beyond 0.10.0 to eliminate the vulnerability.
Monitor for any unusual activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and apply security patches to prevent known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Ensure timely installation of patches and updates for janus-gateway to address security vulnerabilities.