Amazon Linux 2023 Security Advisory: ALAS2023-2025-1345
Advisory Released Date: 2026-01-07
Advisory Updated Date: 2026-01-07
Severity:
Important
Issue Overview:
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. (CVE-2025-65637)
Affected Packages:
ecs-init
Issue Correction:
Run dnf update ecs-init --releasever 2023.10.20260105 or dnf update --advisory ALAS2023-2025-1345 --releasever 2023.10.20260105 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
ecs-init-1.82.2-1.amzn2023.aarch64
src:
ecs-init-1.82.2-1.amzn2023.src
x86_64:
ecs-init-1.82.2-1.amzn2023.x86_64