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Vulnerability of RHEL 8: information disclosure via /proc/sys/kernel/rh_features

Synthesis of the vulnerability 

A local attacker can read a memory fragment via /proc/sys/kernel/rh_features of RHEL 8, in order to obtain sensitive information.
Impacted software: RHEL.
Severity of this computer vulnerability: 1/4.
Creation date: 04/11/2020.
Références of this announce: CERTFR-2020-AVI-710, CVE-2020-10774, RHBUG-1846964, RHSA-2020:4431-01, RHSA-2020:4609-01, VIGILANCE-VUL-33784.

Description of the vulnerability 

A local attacker can read a memory fragment via /proc/sys/kernel/rh_features of RHEL 8, in order to obtain sensitive information.
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This security bulletin impacts software or systems such as RHEL.

Our Vigil@nce team determined that the severity of this cybersecurity announce is low.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

RHEL 8: new kernel packages (04/11/2020).
New packages are available:
  RHEL 8.0-8.2: kernel 4.18.0-240.el8

RHEL 8: new kernel-rt packages (04/11/2020).
New packages are available:
  RHEL 8.0-8.2: kernel-rt 4.18.0-240.rt7.54.el8
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