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.
| Product | Vendor | Version |
|---|---|---|
| Libgcrypt | GNU | n/a |
| GnuPG | GNU | AQT1000, QAM8295P, QCA6390, QCA6391, QCA6420, QCA6430, QCA6574, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCC5100, QCM2290, QCM4290, QCM6125, QCM6490, QCN7606, QCS2290, QCS410, QCS4290, QCS610, QCS6125, QCS6490, SA4150P, SA4155P, SA6145P, SA6150P, SA6155, SA6155P, SA8145P, SA8150P, SA8155, SA8155P, SA8195P, SA8295P, SD 675, SD 8 Gen1 5G, SD439, SD460, SD480, SD660, SD662, SD675, SD678, SD680, SD690 5G, SD695, SD720G, SD730, SD750G, SD765, SD765G, SD768G, SD778G, SD780G, SD855, SD865 5G, SD870, SD888, SD888 5G, SDA429W, SDX50M, SDX55, SDX55M, SM4125, SM4375, SM6250, SM7250P, SM7315, SM7325P, SW5100, SW5100P, WCD9326, WCD9335, WCD9341, WCD9370, WCD9375, WCD9380, WCD9385, WCN3610, WCN3615, WCN3660B, WCN3680B, WCN3910, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN6740, WCN6750, WCN6850, WCN6851, WCN6855, WCN6856, WCN7850, WCN7851, WSA8810, WSA8815, WSA8830, WSA8835 |