CVE-2023-40271

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Summary

CVECVE-2023-40271
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-09-08 02:15:00 UTC
Updated2023-09-13 02:27:00 UTC
DescriptionIn Trusted Firmware-M through TF-Mv1.8.0, for platforms that integrate the CryptoCell accelerator, when the CryptoCell PSA Driver software Interface is selected, and the Authenticated Encryption with Associated Data Chacha20-Poly1305 algorithm is used, with the single-part verification function (defined during the build-time configuration phase) implemented with a dedicated function (i.e., not relying on usage of multipart functions), the buffer comparison during the verification of the authentication tag does not happen on the full 16 bytes but just on the first 4 bytes, thus leading to the possibility that unauthenticated payloads might be identified as authentic. This affects TF-Mv1.6.0, TF-Mv1.6.1, TF-Mv1.7.0, and TF-Mv1.8.

Risk And Classification

Problem Types: CWE-697

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Arm Trusted Firmware-m 1.6.0 All All All
Application Arm Trusted Firmware-m 1.6.1 All All All
Application Arm Trusted Firmware-m 1.7.0 All All All
Application Arm Trusted Firmware-m 1.8.0 All All All

References

ReferenceSourceLinkTags
cc3xx_partial_tag_compare_on_chacha20_poly1305.rst « security_advisories « security « docs - trusted-firmware-m.git - Trusted Firmware for M profile Arm CPUs MISC git.trustedfirmware.org
Releases — Trusted Firmware-M v1.6.1 documentation MISC tf-m-user-guide.trustedfirmware.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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