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Vigil@nce - Linux kernel: NULL pointer dereference via ext4_empty_dir

December 2019 by Marc Jacob

This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2

SYNTHESIS OF THE VULNERABILITY

Impacted products: Linux.

Severity: 1/4.

Consequences: denial of service on server.

Provenance: user shell.

Confidence: confirmed by the editor (5/5).

Creation date: 21/11/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a NULL pointer to be dereferenced via ext4_empty_dir() of the Linux kernel, in order to trigger a denial of service.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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