CentOS: (CVE-2015-5600) CESA-2016:0466: openssh
Description
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
Solution(s)
- centos-upgrade-openssh
- centos-upgrade-openssh-askpass
- centos-upgrade-openssh-clients
- centos-upgrade-openssh-ldap
- centos-upgrade-openssh-server
- centos-upgrade-pam_ssh_agent_auth
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