CVE-2021-3321: Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal
First published: Tue Oct 12 2021(Updated: )
Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal. Zephyr versions >= >=2.4.0 contain Integer Overflow to Buffer Overflow (CWE-680). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99
Credit: vulnerabilities@zephyrproject.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zephyr Project Manager | >=2.4.0<2.5.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What is CVE-2021-3321?
CVE-2021-3321 is a vulnerability in Zephyr that allows for an integer underflow leading to a buffer overflow.
What is the severity of CVE-2021-3321?
The severity of CVE-2021-3321 is high with a CVSS score of 8.8.
What is the affected software for CVE-2021-3321?
The affected software for CVE-2021-3321 is Zephyr versions 2.4.0 to 2.5.0.
How can I fix CVE-2021-3321?
To fix CVE-2021-3321, it is recommended to upgrade to a version of Zephyr that is not affected by the vulnerability.
Where can I find more information about CVE-2021-3321?
You can find more information about CVE-2021-3321 at the following link: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-w44j-66g7-xw99
- agent/type
- agent/softwarecombine
- agent/weakness
- agent/title
- agent/references
- agent/author
- agent/severity
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/zephyrproject
- canonical/zephyr project manager
- version/zephyr project manager/2.4.0