Use of a Broken or Risky Cryptographic Algorithm Affecting libgcrypt package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
2.34% (82nd percentile)

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  • Snyk IDSNYK-CENTOS7-LIBGCRYPT-2022570
  • published26 Jul 2021
  • disclosed2 Jun 2021

Introduced: 2 Jun 2021

CVE-2021-33560  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 libgcrypt.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt package and not the libgcrypt package as distributed by Centos. See How to fix? for Centos:7 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.

CVSS Base Scores

version 3.1