CVE-2021-21851: Buffer Overflow
First published: Wed Aug 18 2021(Updated: )
Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input at “csgp” decoder sample group description indices can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GPAC MP4Box | =1.0.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-21851?
CVE-2021-21851 is considered a critical severity vulnerability due to its potential for exploitation leading to arbitrary code execution.
How do I fix CVE-2021-21851?
To remediate CVE-2021-21851, update the GPAC Project on Advanced Content library to version 1.0.2 or later.
What causes CVE-2021-21851?
CVE-2021-21851 is caused by multiple exploitable integer overflow vulnerabilities within the MPEG-4 decoding functionalities.
Who is affected by CVE-2021-21851?
CVE-2021-21851 affects users running GPAC version 1.0.1 of the Advanced Content library.
What type of attacks can CVE-2021-21851 facilitate?
CVE-2021-21851 can facilitate denial of service attacks or allow an attacker to execute arbitrary code.
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