CVE-2021-3434: L2CAP: Stack based buffer overflow in le_ecred_conn_req()
First published: Tue Jun 28 2022(Updated: )
Stack based buffer overflow in le_ecred_conn_req(). Zephyr versions >= v2.5.0 Stack-based Buffer Overflow (CWE-121). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm
Credit: vulnerabilities@zephyrproject.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zephyrproject Zephyr | >=2.5.0<2.6.0 |
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Frequently Asked Questions
What is CVE-2021-3434?
CVE-2021-3434 is a stack-based buffer overflow vulnerability in le_ecred_conn_req() in Zephyr versions >= v2.5.0.
What is the severity of CVE-2021-3434?
The severity of CVE-2021-3434 is high, with a CVSS score of 7.8.
How does CVE-2021-3434 affect Zephyr?
CVE-2021-3434 affects Zephyr versions >= v2.5.0, leading to a stack-based buffer overflow (CWE-121) vulnerability.
How can I find more information about CVE-2021-3434?
You can find more information about CVE-2021-3434 at the following link: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm
How can I fix CVE-2021-3434?
To fix CVE-2021-3434, update your Zephyr installation to a version that is not affected by the vulnerability (>= v2.6.0).
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