Intrusion Prevention

OpenSSH.sshd.Kex.Input.Kexinit.DoS

Description

This indicates an attack attempt against a Denial Of Service vulnerability in SSH1 protocol implementation in OpenSSH.
The vulnerability is caused by improper implementation of a function in the kex module. A remote attacker may be able to exploit this to cause a denial of service condition on affected systems.

Affected Products

OpenSSH OpenSSH prior to revision 1.127
OpenSSH OpenSSH portable prior to version 7.4p1

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Upgrade to the latest version available from the website.
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/013_ssh_kexinit.patch.sig

CVE References

CVE-2016-8858