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Total
8 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-40528 | 1 Gnupg | 1 Libgcrypt | 2021-11-29 | 2.6 LOW | 5.9 MEDIUM |
| The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP. | |||||
| CVE-2019-12904 | 2 Gnupg, Opensuse | 2 Libgcrypt, Leap | 2021-07-21 | 4.3 MEDIUM | 5.9 MEDIUM |
| ** DISPUTED ** In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack. | |||||
| CVE-2018-0495 | 5 Canonical, Debian, Gnupg and 2 more | 8 Ubuntu Linux, Debian Linux, Libgcrypt and 5 more | 2020-08-24 | 1.9 LOW | 4.7 MEDIUM |
| Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. | |||||
| CVE-2015-0837 | 2 Debian, Gnupg | 3 Debian Linux, Gnupg, Libgcrypt | 2019-12-14 | 4.3 MEDIUM | 5.9 MEDIUM |
| The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack." | |||||
| CVE-2014-3591 | 2 Debian, Gnupg | 3 Debian Linux, Gnupg, Libgcrypt | 2019-12-05 | 1.9 LOW | 4.2 MEDIUM |
| 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. | |||||
| CVE-2017-7526 | 3 Canonical, Debian, Gnupg | 3 Ubuntu Linux, Debian Linux, Libgcrypt | 2019-10-09 | 4.3 MEDIUM | 6.8 MEDIUM |
| libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used. | |||||
| CVE-2017-9526 | 1 Gnupg | 1 Libgcrypt | 2019-01-16 | 4.3 MEDIUM | 5.9 MEDIUM |
| In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library. | |||||
| CVE-2016-6313 | 3 Canonical, Debian, Gnupg | 4 Ubuntu Linux, Debian Linux, Gnupg and 1 more | 2018-01-05 | 5.0 MEDIUM | 5.3 MEDIUM |
| The mixing functions in the random number generator in Libgcrypt before 1.5.6, 1.6.x before 1.6.6, and 1.7.x before 1.7.3 and GnuPG before 1.4.21 make it easier for attackers to obtain the values of 160 bits by leveraging knowledge of the previous 4640 bits. | |||||