CVE-2021-40565: Null Pointer Dereference
First published: Wed Jan 12 2022(Updated: )
A Segmentation fault caused by a null pointer dereference vulnerability exists in Gpac through 1.0.1 via the gf_avc_parse_nalu function in av_parsers.c when using mp4box, which causes 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-2021-40565?
CVE-2021-40565 is classified as a denial of service vulnerability due to a segmentation fault caused by a null pointer dereference.
How do I fix CVE-2021-40565?
To mitigate CVE-2021-40565, upgrade Gpac to version 1.0.1+dfsg1-4+deb11u3 or 2.2.1+dfsg1-3.
Which versions of Gpac are affected by CVE-2021-40565?
CVE-2021-40565 affects Gpac versions up to and including 1.0.1.
What causes the CVE-2021-40565 vulnerability?
CVE-2021-40565 is caused by a null pointer dereference within the gf_avc_parse_nalu function.
Is CVE-2021-40565 specific to any operating system?
CVE-2021-40565 has been specifically noted in Debian distributions that include the affected versions of Gpac.
- collector/security-tracker-debian
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/author
- agent/severity
- agent/last-modified-date
- agent/remedy
- agent/weakness
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/gpac
- canonical/gpac mp4box
- version/gpac mp4box/1.0.1