What is the severity of CVE-2021-21850?

CVE-2021-21850 is considered a high severity vulnerability due to its potential for exploitation through specially crafted MPEG-4 inputs.

How do I fix CVE-2021-21850?

To mitigate CVE-2021-21850, you should update to GPAC version 0.5.2-426-gc5ad4e4+dfsg5-5, 1.0.1+dfsg1-4+deb11u3, or 2.2.1+dfsg1-3.

What systems are affected by CVE-2021-21850?

CVE-2021-21850 affects the GPAC library versions prior to the patched versions mentioned.

What is the impact of exploiting CVE-2021-21850?

Exploiting CVE-2021-21850 could allow an attacker to execute arbitrary code on the affected system through the vulnerable MPEG-4 decoding functionality.

Is there a workaround for CVE-2021-21850 if I cannot update?

There is no officially recognized workaround for CVE-2021-21850; upgrading to a secure version is the recommended solution.

Vulnerability/
CVE-2021-21850

high

8.8

CWE

119 190 680

25/8/2021

3/8/2024

CVE-2021-21850: 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 can cause an integer overflow when the library encounters an atom using the “trun” FOURCC code 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 Linux	=11.0

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-21850?
CVE-2021-21850 is considered a high severity vulnerability due to its potential for exploitation through specially crafted MPEG-4 inputs.
How do I fix CVE-2021-21850?
To mitigate CVE-2021-21850, you should update to GPAC version 0.5.2-426-gc5ad4e4+dfsg5-5, 1.0.1+dfsg1-4+deb11u3, or 2.2.1+dfsg1-3.
What systems are affected by CVE-2021-21850?
CVE-2021-21850 affects the GPAC library versions prior to the patched versions mentioned.
What is the impact of exploiting CVE-2021-21850?
Exploiting CVE-2021-21850 could allow an attacker to execute arbitrary code on the affected system through the vulnerable MPEG-4 decoding functionality.
Is there a workaround for CVE-2021-21850 if I cannot update?
There is no officially recognized workaround for CVE-2021-21850; upgrading to a secure version is the recommended solution.

collector/security-tracker-debian
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collector/mitre-cve
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agent/event
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agent/tags
agent/softwarecombine
collector/nvd-index
agent/software-canonical-lookup-request
package-manager/debian
vendor/gpac
canonical/gpac mp4box
version/gpac mp4box/1.0.1
vendor/debian
canonical/debian linux
version/debian linux/11.0

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