Amazon Linux 2 Security Advisory: ALAS2NITRO-ENCLAVES-2026-085
Advisory Released Date: 2026-01-22
Advisory Updated Date: 2026-01-22
Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out. Furthermore, the error string is constructed by repeated string concatenation, leading to quadratic runtime. Therefore, a certificate provided by a malicious actor can result in excessive resource consumption. (CVE-2025-61729)
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:
docker
Note:
This advisory is applicable to Amazon Linux 2 - Nitro-enclaves Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update docker or yum update --advisory ALAS2NITRO-ENCLAVES-2026-085 to update your system.
aarch64:
docker-25.0.14-1.amzn2.0.1.aarch64
docker-debuginfo-25.0.14-1.amzn2.0.1.aarch64
src:
docker-25.0.14-1.amzn2.0.1.src
x86_64:
docker-25.0.14-1.amzn2.0.1.x86_64
docker-debuginfo-25.0.14-1.amzn2.0.1.x86_64