{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/63103?format=json","vulnerability_id":"VCID-2zrv-q4tb-wqeg","summary":"The NSS code used for checking PKCS#1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks.\nBoth the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel.\nBy sending large number of attacker-selected ciphertexts, the attacker would be able to decrypt a previously intercepted PKCS#1 v1.5 ciphertext (for example, to decrypt a TLS session that used RSA key exchange), or forge a signature using the victim's key.\nThe issue was fixed by implementing the implicit rejection algorithm, in which the NSS returns a deterministic random message in case invalid padding is detected, as proposed in the Marvin Attack 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