CVE-2021-29446

Katalog CVE

CVSS 5.9 · Medium EPSS 1,1%

Kerentanan Observable Discrepancy pada jose-node-cjs-runtime project jose-node-cjs-runtime. Skor CVSS 3.1 5.9 (Medium) menurut NVD.

Deskripsi (NVD)

jose-node-cjs-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `>=3.11.4`. Users should upgrade to `^3.11.4`.

Rincian

Terbit di NVD

16 April 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-203: Observable Discrepancy

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/panva/jose/security/advisories/GHSA-rvcw-f68w-8h8h advisory pihak ketiga
• https://www.npmjs.com/package/jose-node-cjs-runtime product · advisory pihak ketiga