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Amazon Linux 2023: CVE-2023-31124: Important priority package update for c-ares (Multiple Advisories)

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Amazon Linux 2023: CVE-2023-31124: Important priority package update for c-ares (Multiple Advisories)

Severity
3
CVSS
(AV:N/AC:H/Au:N/C:N/I:P/A:N)
Published
05/22/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

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. A flaw was found in c-ares. This issue occurs 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. As a result, it will downgrade to rand(), which could allow an attacker to utilize the lack of entropy by not using a CSPRNG.

Solution(s)

  • amazon-linux-2023-upgrade-c-ares
  • amazon-linux-2023-upgrade-c-ares-debuginfo
  • amazon-linux-2023-upgrade-c-ares-debugsource
  • amazon-linux-2023-upgrade-c-ares-devel
  • amazon-linux-2023-upgrade-ecs-service-connect-agent

References

  • https://attackerkb.com/topics/cve-2023-31124
  • CVE - 2023-31124
  • https://alas.aws.amazon.com/AL2023/ALAS-2023-198.html
  • https://alas.aws.amazon.com/AL2023/ALAS-2023-344.html
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