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Use of a Broken or Risky Cryptographic Algorithm Affecting libgcrypt20 package, versions *

Severity

 Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.19% (58th percentile)

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  • Snyk ID SNYK-DEBIAN11-LIBGCRYPT20-523947
  • published 7 Feb 2018
  • disclosed 7 Feb 2018
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Introduced: 7 Feb 2018

CVE-2018-6829 Open this link in a new tab
CWE-327 Open this link in a new tab

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. See How to fix? for Debian:11 relevant fixed versions and status.

cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.