CVE-2023-40271

Katalog CVE

CVSS 7.5 · High EPSS 0,39%

Kerentanan Incorrect Comparison pada trustedfirmware trusted firmware-m. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

In 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.

Rincian

Terbit di NVD

8 September 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-697: Incorrect Comparison

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 30,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/cc3xx_parti... exploit · mitigasi · deskripsi teknis · advisory vendor
• https://tf-m-user-guide.trustedfirmware.org/releases/index.html release notes