Vulnerability Monitor

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CVE-2021-43619

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.

Published

2022-03-01T05:15:07.803

Last Modified

2024-11-27T20:03:20.203

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	arm	trusted_firmware-m	1.4.0	Yes
Operating System	arm	trusted_firmware-m	1.4.1	Yes

References

https://developer.arm.com/support/arm-security-updates Vendor Advisory ([email protected])
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ Patch, Third Party Advisory ([email protected])
https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html Exploit, Patch, Third Party Advisory ([email protected])
https://www.trustedfirmware.org Product ([email protected])
https://developer.arm.com/support/arm-security-updates Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html Exploit, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.trustedfirmware.org Product (af854a3a-2127-422b-91ae-364da2661108)