Amazon Linux 2 Security Advisory: ALAS2-2026-3155
Advisory Released Date: 2026-02-05
Advisory Updated Date: 2026-03-11
Severity:
Medium
Issue Overview:
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read. (CVE-2025-47914)
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. (CVE-2025-58181)
Affected Packages:
nerdctl
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update nerdctl or yum update --advisory ALAS2-2026-3155 to update your system.
New Packages:
aarch64:
nerdctl-2.2.1-1.amzn2.0.1.aarch64
nerdctl-debuginfo-2.2.1-1.amzn2.0.1.aarch64
src:
nerdctl-2.2.1-1.amzn2.0.1.src
x86_64:
nerdctl-2.2.1-1.amzn2.0.1.x86_64
nerdctl-debuginfo-2.2.1-1.amzn2.0.1.x86_64
Changelog:
2026-03-11: CVE-2025-47914 was added to this advisory.