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Use of a Broken or Risky Cryptographic Algorithm Affecting libgcrypt package, versions <0:1.8.5-6.el8

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-CENTOS8-LIBGCRYPT-2147651
  • published 26 Jul 2021
  • disclosed 2 Jun 2021
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Introduced: 2 Jun 2021

CVE-2021-33560 Open this link in a new tab
CWE-327 Open this link in a new tab

How to fix?

Upgrade Centos:8 libgcrypt to version 0:1.8.5-6.el8 or higher.

NVD Description

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

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.