Amazon Linux AMI Update: kernel / openssh Denial of Service (ALAS-2014-319)

medium Nessus Plugin ID 73569

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Due to a problem with the configuration of kernels 3.10.34-37 and 3.10.34-38 and their interaction with the authentication modules stack, the sshd daemon that is part of the openssh package will no longer allow remote logins following a restart of the sshd service.

Solution

Run 'yum update openssh kernel' to update the system. A reboot will be necessary for the new kernel on the instance.

Plugin Details

Severity: Medium

ID: 73569

File Name: ala_ALAS-2014-319.nasl

Version: Revision

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/16/2014

Updated: 4/16/2014

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openssh-clients, p-cpe:/a:amazon:linux:openssh-keycat, p-cpe:/a:amazon:linux:pam_ssh_agent_auth, p-cpe:/a:amazon:linux:openssh-server, p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:openssh-ldap, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:openssh, p-cpe:/a:amazon:linux:openssh-debuginfo

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 3/29/2014

Reference Information

ALAS: 2014-319

Detections

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