Use of a Broken or Risky Cryptographic Algorithm Affecting libgcrypt package, versions <10:1.8.5-7.el8_6_fips



    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.18% (55th percentile)
Expand this section
5.9 medium
Expand this section
Red Hat
5.9 medium

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  • published 2 Jul 2022
  • disclosed 6 Sep 2021

How to fix?

Upgrade Oracle:8 libgcrypt to version 10:1.8.5-7.el8_6_fips or higher.
This issue was patched in ELSA-2022-9564.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt package and not the libgcrypt package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.