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OpenAdvisories
High ALAS2023-2025-1345 1 CVE

Important: ecs-init security update (Amazon Linux 2023)

Published Jan 7, 2026 · Updated Jan 7, 2026

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-65637: A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with "token too long" and the writer pipe is closed, leaving Writer() unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2. The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to function even if an error is logged.

Fixed packages 1

ReleasePackageFixed in
Amazon Linux · 2023 ecs-init 0:1.82.2-1.amzn2023

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-65637.html