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Vigil@nce - Linux kernel: out-of-bounds memory reading via wait_til_ready

May 2020 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/computer-vulne...

SYNTHESIS OF THE VULNERABILITY

Impacted products: Linux, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Severity: 2/4.

Consequences: data reading, denial of service on server.

Provenance: user shell.

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

Creation date: 27/03/2020.

DESCRIPTION OF THE VULNERABILITY

An attacker can force a read at an invalid address via wait_til_ready() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

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




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