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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/...




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