Use of Insufficiently Random Values Affecting c-ares package, versions <0:1.10.0-3.amzn2.0.5


Severity

Recommended
0.0
low
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-AMZN2-CARES-6184472
  • published23 Jan 2024
  • 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 Amazon-Linux:2 c-ares to version 0:1.10.0-3.amzn2.0.5 or higher.
This issue was patched in ALAS2-2024-2429.

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 Amazon-Linux. See How to fix? for Amazon-Linux:2 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 Scores

version 3.1