What is the severity of CVE-2021-21841?

CVE-2021-21841 is classified as a critical vulnerability due to its potential for exploitation through crafted MPEG-4 files.

How do I fix CVE-2021-21841?

To mitigate CVE-2021-21841, upgrade to the patched versions of GPAC, specifically version 0.5.2-426-gc5ad4e4+dfsg5-5 or later.

Which versions of GPAC are affected by CVE-2021-21841?

CVE-2021-21841 affects GPAC version 1.0.1 and potentially earlier versions.

What causes the vulnerability in CVE-2021-21841?

CVE-2021-21841 is caused by an integer overflow in the MPEG-4 decoding functionality due to unchecked arithmetic operations.

Can CVE-2021-21841 be exploited remotely?

Yes, CVE-2021-21841 can be exploited remotely by supplying specially crafted MPEG-4 files to a vulnerable system.

Vulnerability/
CVE-2021-21841

high

8.8

CWE

119 190 680

25/8/2021

3/8/2024

CVE-2021-21841: Buffer Overflow

First published: Wed Aug 25 2021(Updated: )

An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input when reading an atom using the 'sbgp' FOURCC code 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
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	=10.0
Debian	=11.0

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Frequently Asked Questions

What is the severity of CVE-2021-21841?
CVE-2021-21841 is classified as a critical vulnerability due to its potential for exploitation through crafted MPEG-4 files.
How do I fix CVE-2021-21841?
To mitigate CVE-2021-21841, upgrade to the patched versions of GPAC, specifically version 0.5.2-426-gc5ad4e4+dfsg5-5 or later.
Which versions of GPAC are affected by CVE-2021-21841?
CVE-2021-21841 affects GPAC version 1.0.1 and potentially earlier versions.
What causes the vulnerability in CVE-2021-21841?
CVE-2021-21841 is caused by an integer overflow in the MPEG-4 decoding functionality due to unchecked arithmetic operations.
Can CVE-2021-21841 be exploited remotely?
Yes, CVE-2021-21841 can be exploited remotely by supplying specially crafted MPEG-4 files to a vulnerable system.

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collector/mitre-cve
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agent/software-canonical-lookup-request
package-manager/debian
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vendor/debian
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