Panva Jose Node Esm Runtime vulnerabilities

1 vulnerability

Known vulnerabilities in Panva Jose Node Esm Runtime, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

RoutineCVE-2021-29445panva · jose-node-esm-runtime +2 morePadding Oracle Attack due to Observable Timing Discrepancy in jose-node-esm-runtimejose-node-esm-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`.CVSS5.9MediumEPSS1.07%