CVE-2021-3434 — MEDIUM (4.9)

Vulnerability Description

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

CVSS Score

4.9

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	>= 2.5.0, < 2.6.0

Related Weaknesses (CWE)

CWE-121 CWE-787

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cVendor Advisory
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cVendor Advisory

FAQ

What is CVE-2021-3434?

CVE-2021-3434 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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/adv...

How severe is CVE-2021-3434?

CVE-2021-3434 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3434?

Check the references section above for vendor advisories and patch information. Affected products include: Zephyrproject Zephyr.