CVE-2021-30022 : Vulnerability Insights and Analysis

This vulnerability affects GPAC 1.0.1 due to an integer overflow in media_tools/av_parsers.c. An attacker can trigger a crash by exploiting this flaw.

Understanding CVE-2021-30022

This CVE involves an integer overflow issue in GPAC 1.0.1, allowing a negative number to cause an overflow and crash the system.

What is CVE-2021-30022?

The vulnerability exists in the gf_avc_read_pps_bs_internal function in GPAC 1.0.1, where a negative pps_id value causes an overflow leading to a crash.

The Impact of CVE-2021-30022

The exploitation of this vulnerability can result in a denial of service (DoS) condition by crashing the affected GPAC system.

Technical Details of CVE-2021-30022

This section provides in-depth technical details of the CVE to help understand its nature.

Vulnerability Description

The flaw originates from an integer overflow in media_tools/av_parsers.c within GPAC 1.0.1, triggered by a negative pps_id value leading to a crash.

Affected Systems and Versions

GPAC 1.0.1 is specifically impacted by this vulnerability; other versions may not be affected.

Exploitation Mechanism

By providing a negative pps_id value, an attacker can exploit the overflow to crash the system.

Mitigation and Prevention

To protect systems from the CVE-2021-30022 vulnerability, immediate actions and long-term security practices are essential.

Immediate Steps to Take

It is advised to update GPAC to a patched version promptly to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure coding practices and regular security audits can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates and apply patches provided by GPAC to address the CVE-2021-30022 vulnerability.