Use of Insufficiently Random Values Affecting c-ares package, versions <1.19.1-2


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.93% (59th percentile)

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  • Snyk IDSNYK-ECHOLATEST-CARES-19643593
  • published8 Sept 2026
  • disclosed25 May 2023

Introduced: 25 May 2023

CVE-2023-31124  (opens in a new tab)
CWE-330  (opens in a new tab)

How to fix?

Upgrade Echo:latest c-ares to version 1.19.1-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream c-ares package and not the c-ares package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.

CVSS Base Scores

version 3.1