Use of Insufficiently Random Values Affecting openssl package, versions <1.1.1d-0+deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.71% (91st percentile)

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  • Snyk IDSNYK-DEBIAN10-OPENSSL-466468
  • published11 Sept 2019
  • disclosed10 Sept 2019

Introduced: 10 Sep 2019

CVE-2019-1549  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade Debian:10 openssl to version 1.1.1d-0+deb10u1 or higher.

NVD Description

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

OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).

References

CVSS Scores

version 3.1