Test ID:	1.3.6.1.4.1.25623.1.0.881646
Category:	CentOS Local Security Checks
Title:	CentOS Update for openssh CESA-2013:0519 centos6
Summary:	The remote host is missing an update for the 'openssh'; package(s) announced via the referenced advisory.
Description:	Summary: The remote host is missing an update for the 'openssh' package(s) announced via the referenced advisory. Vulnerability Insight: OpenSSH is OpenBSD's Secure Shell (SSH) protocol implementation. These packages include the core files necessary for the OpenSSH client and server. Due to the way the pam_ssh_agent_auth PAM module was built in Red Hat Enterprise Linux 6, the glibc's error() function was called rather than the intended error() function in pam_ssh_agent_auth to report errors. As these two functions expect different arguments, it was possible for an attacker to cause an application using pam_ssh_agent_auth to crash, disclose portions of its memory or, potentially, execute arbitrary code. (CVE-2012-5536) Note that the pam_ssh_agent_auth module is not used in Red Hat Enterprise Linux 6 by default. This update also fixes the following bugs: * All possible options for the new RequiredAuthentications directive were not documented in the sshd_config man page. This update improves the man page to document all the possible options. (BZ#821641) * When stopping one instance of the SSH daemon (sshd), the sshd init script (/etc/rc.d/init.d/sshd) stopped all sshd processes regardless of the PID of the processes. This update improves the init script so that it only kills processes with the relevant PID. As a result, the init script now works more reliably in a multi-instance environment. (BZ#826720) * Due to a regression, the ssh-copy-id command returned an exit status code of zero even if there was an error in copying the key to a remote host. With this update, a patch has been applied and ssh-copy-id now returns a non-zero exit code if there is an error in copying the SSH certificate to a remote host. (BZ#836650) * When SELinux was disabled on the system, no on-disk policy was installed, a user account was used for a connection, and no '~ /.ssh' configuration was present in that user's home directory, the SSH client terminated unexpectedly with a segmentation fault when attempting to connect to another system. A patch has been provided to address this issue and the crashes no longer occur in the described scenario. (BZ#836655) * The 'HOWTO' document /usr/share/doc/openssh-ldap-5.3p1/HOWTO.ldap-keys incorrectly documented the use of the AuthorizedKeysCommand directive. This update corrects the document. (BZ#857760) This update also adds the following enhancements: * When attempting to enable SSH for use with a Common Access Card (CAC), the ssh-agent utility read all the certificates in the card even though only the ID certificate was needed. Consequently, if a user entered their PIN incorrectly, then t ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: openssh on CentOS 6 Solution: Please install the updated packages. CVSS Score: 6.2 CVSS Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2012-5536 RHSA-2013:0519 http://rhn.redhat.com/errata/RHSA-2013-0519.html http://pkgs.fedoraproject.org/cgit/openssh.git/commit/?id=4f4687ce8045418f678c323bb22c837f35d7b9fa https://bugzilla.redhat.com/show_bug.cgi?id=834618
Copyright	Copyright (C) 2013 Greenbone AG

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