Vulnerability Description
Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update partition. In the IPC model, a psa_fwu_write caller from SPE or NSPE can overwrite stack memory locations.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Trusted Firmware-M | 1.4.0 |
Related Weaknesses (CWE)
References
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/PatchThird Party Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwExploitPatchThird Party Advisory
- https://www.trustedfirmware.orgProduct
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/PatchThird Party Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwExploitPatchThird Party Advisory
- https://www.trustedfirmware.orgProduct
FAQ
What is CVE-2021-43619?
CVE-2021-43619 is a vulnerability with a CVSS score of 7.8 (HIGH). Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update partition. In the IPC model, a psa_fwu_write caller from SPE or NSPE can overwrite stack memory locations.
How severe is CVE-2021-43619?
CVE-2021-43619 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43619?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Trusted Firmware-M.