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Insufficient Entropy Affecting gcc-8 package, versions *

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    EPSS 0.18% (55th percentile)
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NVD
7.5 high
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SUSE
6.2 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN10-GCC8-469413
  • published 28 Sep 2019
  • disclosed 2 Sep 2019
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Introduced: 2 Sep 2019

CVE-2019-15847 Open this link in a new tab
CWE-331 Open this link in a new tab

How to fix?

There is no fixed version for Debian:10 gcc-8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gcc-8 package and not the gcc-8 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator. This occurred because a volatile operation was not specified. For example, within a single execution of a program, the output of every __builtin_darn() call may be the same.