ALAS2-2026-3175

Amazon Linux 2 Security Advisory: ALAS2-2026-3175
Advisory Released Date: 2026-02-19
Advisory Updated Date: 2026-02-19
Severity: Medium
Issue Overview:

In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding. (CVE-2025-32728)

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.) (CVE-2025-61984)


Affected Packages:

openssh


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 openssh or yum update --advisory ALAS2-2026-3175 to update your system.

New Packages:
aarch64:
    openssh-7.4p1-22.amzn2.0.11.aarch64
    openssh-clients-7.4p1-22.amzn2.0.11.aarch64
    openssh-server-7.4p1-22.amzn2.0.11.aarch64
    openssh-server-sysvinit-7.4p1-22.amzn2.0.11.aarch64
    openssh-ldap-7.4p1-22.amzn2.0.11.aarch64
    openssh-keycat-7.4p1-22.amzn2.0.11.aarch64
    openssh-askpass-7.4p1-22.amzn2.0.11.aarch64
    openssh-cavs-7.4p1-22.amzn2.0.11.aarch64
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.11.aarch64
    openssh-debuginfo-7.4p1-22.amzn2.0.11.aarch64

i686:
    openssh-7.4p1-22.amzn2.0.11.i686
    openssh-clients-7.4p1-22.amzn2.0.11.i686
    openssh-server-7.4p1-22.amzn2.0.11.i686
    openssh-server-sysvinit-7.4p1-22.amzn2.0.11.i686
    openssh-ldap-7.4p1-22.amzn2.0.11.i686
    openssh-keycat-7.4p1-22.amzn2.0.11.i686
    openssh-askpass-7.4p1-22.amzn2.0.11.i686
    openssh-cavs-7.4p1-22.amzn2.0.11.i686
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.11.i686
    openssh-debuginfo-7.4p1-22.amzn2.0.11.i686

src:
    openssh-7.4p1-22.amzn2.0.11.src

x86_64:
    openssh-7.4p1-22.amzn2.0.11.x86_64
    openssh-clients-7.4p1-22.amzn2.0.11.x86_64
    openssh-server-7.4p1-22.amzn2.0.11.x86_64
    openssh-server-sysvinit-7.4p1-22.amzn2.0.11.x86_64
    openssh-ldap-7.4p1-22.amzn2.0.11.x86_64
    openssh-keycat-7.4p1-22.amzn2.0.11.x86_64
    openssh-askpass-7.4p1-22.amzn2.0.11.x86_64
    openssh-cavs-7.4p1-22.amzn2.0.11.x86_64
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.11.x86_64
    openssh-debuginfo-7.4p1-22.amzn2.0.11.x86_64

Additional References

Release Notes:  Amazon Linux 2 Release Notes

Red Hat: CVE-2025-32728, CVE-2025-61984

Mitre: CVE-2025-32728, CVE-2025-61984