Vigil@nce - Linux kernel: denial of service via Netfilter Memory Barriers
April 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Fedora, Linux.
Consequences: denial of service on server.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 31/03/2021.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a fatal error via Netfilter Memory Barriers of the Linux kernel, in order to trigger a denial of service.
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