Medium: openssh

Issue Overview:

AWS is aware of CVE-2023-48795, also known as Terrapin, which is found in the SSH protocol and affects SSH channel integrity. A protocol extension has been introduced by OpenSSH which needs to be applied to both the client and the server in order to address this issue. We recommend customers update to the latest version of SSH. (CVE-2023-48795)

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 to update your system.

New Packages:

aarch64:  
    openssh-7.4p1-22.amzn2.0.6.aarch64  
    openssh-clients-7.4p1-22.amzn2.0.6.aarch64  
    openssh-server-7.4p1-22.amzn2.0.6.aarch64  
    openssh-server-sysvinit-7.4p1-22.amzn2.0.6.aarch64  
    openssh-ldap-7.4p1-22.amzn2.0.6.aarch64  
    openssh-keycat-7.4p1-22.amzn2.0.6.aarch64  
    openssh-askpass-7.4p1-22.amzn2.0.6.aarch64  
    openssh-cavs-7.4p1-22.amzn2.0.6.aarch64  
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.6.aarch64  
    openssh-debuginfo-7.4p1-22.amzn2.0.6.aarch64  
  
i686:  
    openssh-7.4p1-22.amzn2.0.6.i686  
    openssh-clients-7.4p1-22.amzn2.0.6.i686  
    openssh-server-7.4p1-22.amzn2.0.6.i686  
    openssh-server-sysvinit-7.4p1-22.amzn2.0.6.i686  
    openssh-ldap-7.4p1-22.amzn2.0.6.i686  
    openssh-keycat-7.4p1-22.amzn2.0.6.i686  
    openssh-askpass-7.4p1-22.amzn2.0.6.i686  
    openssh-cavs-7.4p1-22.amzn2.0.6.i686  
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.6.i686  
    openssh-debuginfo-7.4p1-22.amzn2.0.6.i686  
  
src:  
    openssh-7.4p1-22.amzn2.0.6.src  
  
x86_64:  
    openssh-7.4p1-22.amzn2.0.6.x86_64  
    openssh-clients-7.4p1-22.amzn2.0.6.x86_64  
    openssh-server-7.4p1-22.amzn2.0.6.x86_64  
    openssh-server-sysvinit-7.4p1-22.amzn2.0.6.x86_64  
    openssh-ldap-7.4p1-22.amzn2.0.6.x86_64  
    openssh-keycat-7.4p1-22.amzn2.0.6.x86_64  
    openssh-askpass-7.4p1-22.amzn2.0.6.x86_64  
    openssh-cavs-7.4p1-22.amzn2.0.6.x86_64  
    pam_ssh_agent_auth-0.10.3-2.22.amzn2.0.6.x86_64  
    openssh-debuginfo-7.4p1-22.amzn2.0.6.x86_64  

Additional References

Red Hat: CVE-2023-48795

Mitre: CVE-2023-48795