CVE-2021-3330 — HIGH (7.1) — White Hats Nepal

Vulnerability Description

RCE/DOS: Linked-list corruption leading to large out-of-bounds write while sorting for forged fragment list in Zephyr. Zephyr versions >= >=2.4.0 contain Out-of-bounds Write (CWE-787). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fj4r-373f-9456

CVSS Score

7.1

HIGH

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Zephyrproject	Zephyr	>= 2.4.0, < 2.5.0

Related Weaknesses (CWE)

CWE-787

References

http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fj4r-373f-9ExploitPatchThird Party Advisory
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fj4r-373f-9ExploitPatchThird Party Advisory

FAQ

What is CVE-2021-3330?

CVE-2021-3330 is a vulnerability with a CVSS score of 7.1 (HIGH). RCE/DOS: Linked-list corruption leading to large out-of-bounds write while sorting for forged fragment list in Zephyr. Zephyr versions >= >=2.4.0 contain Out-of-bounds Write (CWE-787). For more inform...

How severe is CVE-2021-3330?

CVE-2021-3330 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3330?

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