CVE-2021-40572: Double Free
First published: Thu Jan 13 2022(Updated: )
The binary MP4Box in Gpac 1.0.1 has a double-free bug in the av1dmx_finalize function in reframe_av1.c, which allows attackers to cause a denial of service.
Credit: cve@mitre.org
| 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 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-40572?
CVE-2021-40572 is classified as a denial of service vulnerability due to a double-free bug in MP4Box.
How do I fix CVE-2021-40572?
To fix CVE-2021-40572, update to GPAC versions 1.0.1+dfsg1-4+deb11u3 or 2.2.1+dfsg1-3.
Which versions of GPAC are affected by CVE-2021-40572?
GPAC versions up to and including 1.0.1 are affected by CVE-2021-40572.
Is CVE-2021-40572 a remote code execution vulnerability?
No, CVE-2021-40572 specifically leads to a denial of service, not remote code execution.
What function in GPAC is responsible for CVE-2021-40572?
The double-free bug causing CVE-2021-40572 is located in the av1dmx_finalize function within reframe_av1.c.
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- source/MITRE
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- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/gpac
- canonical/gpac mp4box
- version/gpac mp4box/1.0.1