Detections
Analytics
CVE-2021-40528
medium
Description
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.
References
https://security.gentoo.org/glsa/202210-13
https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1