CVE-2021-21862 : Vulnerability Insights and Analysis
Learn about CVE-2021-21862, a high-severity vulnerability in GPAC Project Advanced Content v1.0.1. Understand its impact, affected systems, and mitigation steps.
A detailed overview of CVE-2021-21862, a high-severity vulnerability affecting GPAC Project Advanced Content library v1.0.1.
Understanding CVE-2021-21862
This section provides insights into the nature and impact of the vulnerability.
What is CVE-2021-21862?
The CVE-2021-21862 vulnerability involves multiple exploitable integer truncation vulnerabilities within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. Attackers can exploit this flaw by enticing users to open a specially crafted MPEG-4 video that triggers a heap-based buffer overflow, leading to memory corruption.
The Impact of CVE-2021-21862
With a CVSS base score of 8.8 (High), this vulnerability poses significant risks. The attack complexity is low, but the impact on confidentiality, integrity, and availability is high. No special privileges are required for exploitation, but user interaction is necessary, making it a critical threat.
Technical Details of CVE-2021-21862
Explore the specifics of the vulnerability to understand its implications further.
Vulnerability Description
The vulnerability arises due to improper memory allocation when processing MPEG-4 inputs, specifically affecting the “Xtra” FOURCC code. This leads to a heap-based buffer overflow, causing memory corruption.
Affected Systems and Versions
GPAC Project Advanced Content library v1.0.1 is susceptible to this vulnerability, impacting systems with this specific version.
Exploitation Mechanism
By tricking a user into opening a maliciously crafted MPEG-4 video, an attacker can exploit the integer truncation vulnerabilities to trigger a heap-based buffer overflow.
Mitigation and Prevention
Discover the steps to secure systems and prevent potential exploitation of CVE-2021-21862.
Immediate Steps to Take
Users are advised to apply security patches promptly and avoid opening untrusted MPEG-4 videos to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing robust security measures and staying informed about potential threats can enhance long-term security posture.
Patching and Updates
Regularly update software and libraries, including the GPAC Project Advanced Content, to ensure protection against known vulnerabilities.