What is the severity of CVE-2021-21849?

CVE-2021-21849 has been classified as a high-severity vulnerability due to the risk of exploitation through specially crafted MPEG-4 files.

What causes the CVE-2021-21849 vulnerability?

The vulnerability is caused by an integer overflow in the MPEG-4 decoding functionality within the GPAC Project's Advanced Content library.

How do I fix CVE-2021-21849?

To fix CVE-2021-21849, update the GPAC library to version 0.5.2-426-gc5ad4e4+dfsg5-5 or later.

Which versions of GPAC are affected by CVE-2021-21849?

GPAC version 1.0.1 and earlier versions are affected by CVE-2021-21849.

Is there any workaround for CVE-2021-21849?

There are no known effective workarounds for CVE-2021-21849, so updating is essential.

Vulnerability/
CVE-2021-21849

high

8.8

CWE

119 190 680

25/8/2021

3/8/2024

CVE-2021-21849: 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 “tfra” 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	=10.0
Debian	=11.0

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-21849?
CVE-2021-21849 has been classified as a high-severity vulnerability due to the risk of exploitation through specially crafted MPEG-4 files.
What causes the CVE-2021-21849 vulnerability?
The vulnerability is caused by an integer overflow in the MPEG-4 decoding functionality within the GPAC Project's Advanced Content library.
How do I fix CVE-2021-21849?
To fix CVE-2021-21849, update the GPAC library to version 0.5.2-426-gc5ad4e4+dfsg5-5 or later.
Which versions of GPAC are affected by CVE-2021-21849?
GPAC version 1.0.1 and earlier versions are affected by CVE-2021-21849.
Is there any workaround for CVE-2021-21849?
There are no known effective workarounds for CVE-2021-21849, so updating is essential.

collector/security-tracker-debian
agent/type
collector/mitre-cve
source/MITRE
agent/author
agent/references
agent/last-modified-date
agent/severity
agent/weakness
agent/description
agent/first-publish-date
agent/event
agent/source
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
version/debian/10.0
version/debian/11.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.