Information Exposure Affecting libgcrypt20 package, versions <1.6.3-2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.28% (68th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBGCRYPT20-391878
  • published27 Jun 2018
  • disclosed29 Nov 2019

Introduced: 27 Jun 2018

CVE-2015-0837  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libgcrypt20 to version 1.6.3-2 or higher.

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:unstable relevant fixed versions and status.

The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."

CVSS Scores

version 3.1