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

January 2017 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

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

 Impacted products: Debian, Linux.
 Severity: 1/4.
 Creation date: 02/01/2017.

DESCRIPTION OF THE VULNERABILITY

The Linux kernel has a hid/hid-core.c driver for Logitech DJ.

However, it tries to read a memory area located outside the
expected range, which triggers a fatal error, or leads to the
disclosure of a memory fragment.

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

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Linux-kernel-out-of-bounds-memory-reading-via-hid-input-field-21492


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