Vigil@nce - Linux kernel: information disclosure via __btrfs_free_extent
December 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...
SYNTHESIS OF THE VULNERABILITY
Impacted products: Linux.
Consequences: data reading.
Provenance: user shell.
Confidence: confirmed by the editor (5/5).
Creation date: 21/11/2019.
DESCRIPTION OF THE VULNERABILITY
A local attacker can read a memory fragment via __btrfs_free_extent() of the Linux kernel, in order to obtain sensitive information.
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