Information Exposure Affecting libgcrypt20 package, versions *


low

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-DEBIAN11-LIBGCRYPT20-1297892
  • published 29 May 2021
  • disclosed 8 Jun 2021

How to fix?

There is no fixed version for Debian:11 libgcrypt20.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Debian:11. See How to fix? for Debian:11 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.