Security Advisory
CVE-2021-33560
7.5
HIGH
Vulnerability Description
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
Published Date
June 8, 2021
Official Source
NIST NVD Advisory