Amazon Linux AMI 2: CVE-2021-33560: Security patch for libgcrypt (ALAS-2022-1769)
5
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
06/08/2021
07/16/2022
07/04/2022
09/30/2022
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.
Solution(s)
- amazon-linux-ami-2-upgrade-libgcrypt
- amazon-linux-ami-2-upgrade-libgcrypt-debuginfo
- amazon-linux-ami-2-upgrade-libgcrypt-devel
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