Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during multiplication.
2019-11-29T22:15:11.703
2024-11-21T02:08:27.843
Modified
CVSSv3.1: 4.2 (MEDIUM)
AV:L/AC:M/Au:N/C:P/I:N/A:N
3.4
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | gnupg | gnupg | < 1.4.19 | Yes |
Application | gnupg | libgcrypt | < 1.6.3 | Yes |
Operating System | debian | debian_linux | 7.0 | Yes |
Operating System | debian | debian_linux | 8.0 | Yes |