vulnerability

Debian: CVE-2021-40528: libgcrypt20 -- security update

Severity
3
CVSS
(AV:N/AC:H/Au:N/C:P/I:N/A:N)
Published
Sep 6, 2021
Added
Nov 30, 2021
Modified
Aug 15, 2025

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.

Solution

debian-upgrade-libgcrypt20
Title
NEW

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