What is the severity of CVE-2021-21859?

CVE-2021-21859 has been classified as a high-severity vulnerability due to its potential exploitation through specially crafted video files.

How do I fix CVE-2021-21859?

To fix CVE-2021-21859, you should update the GPAC library to a patched version such as 0.5.2-426-gc5ad4e4+dfsg5-5, 1.0.1+dfsg1-4+deb11u3, or 2.2.1+dfsg1-3.

What software is affected by CVE-2021-21859?

CVE-2021-21859 affects GPAC versions 1.0.1 and earlier, particularly on Debian Linux 11.0.

Can CVE-2021-21859 be exploited remotely?

Yes, CVE-2021-21859 can be exploited remotely if an attacker convinces a user to open a malicious video file.

What type of vulnerability is CVE-2021-21859?

CVE-2021-21859 is an integer truncation vulnerability that affects the MPEG-4 decoding functionality of the GPAC Project.

Vulnerability/
CVE-2021-21859

high

8.8

CWE

190 680

16/8/2021

3/8/2024

CVE-2021-21859: Integer Overflow

First published: Mon Aug 16 2021(Updated: )

An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The stri_box_read function is used when processing atoms using the 'stri' FOURCC code. 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
debian/gpac		0.5.2-426-gc5ad4e4+dfsg5-5 1.0.1+dfsg1-4+deb11u3 2.2.1+dfsg1-3
GPAC MP4Box	=1.0.1
Debian Linux	=11.0

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Frequently Asked Questions

What is the severity of CVE-2021-21859?
CVE-2021-21859 has been classified as a high-severity vulnerability due to its potential exploitation through specially crafted video files.
How do I fix CVE-2021-21859?
To fix CVE-2021-21859, you should update the GPAC library to a patched version such as 0.5.2-426-gc5ad4e4+dfsg5-5, 1.0.1+dfsg1-4+deb11u3, or 2.2.1+dfsg1-3.
What software is affected by CVE-2021-21859?
CVE-2021-21859 affects GPAC versions 1.0.1 and earlier, particularly on Debian Linux 11.0.
Can CVE-2021-21859 be exploited remotely?
Yes, CVE-2021-21859 can be exploited remotely if an attacker convinces a user to open a malicious video file.
What type of vulnerability is CVE-2021-21859?
CVE-2021-21859 is an integer truncation vulnerability that affects the MPEG-4 decoding functionality of the GPAC Project.

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