Vigil@nce - OpenSSH: NULL pointer dereference via a NEWKEYS message
March 2018 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced in OpenSSH
via an out of order NEWKEYS message, in order to trigger a denial
of service.
– Impacted products: Debian, OpenSSH.
– Severity: 2/4.
– Creation date: 22/01/2018.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a NULL pointer to be dereferenced in OpenSSH
via an out of order NEWKEYS message, in order to trigger a denial
of service.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/OpenSSH-NULL-pointer-dereference-via-a-NEWKEYS-message-25131