The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of RHEL 8 kpatch-patch: denial of service via Machine Check Error On Page Size Change

Synthesis of the vulnerability 

An attacker can trigger a fatal error via Machine Check Error On Page Size Change of RHEL 8 kpatch-patch, in order to trigger a denial of service.
Impacted products: RHEL.
Severity of this bulletin: 1/4.
Creation date: 17/12/2019.
Références of this threat: CVE-2019-19339, RHSA-2019:4245-01, VIGILANCE-VUL-31167.

Description of the vulnerability 

An attacker can trigger a fatal error via Machine Check Error On Page Size Change of RHEL 8 kpatch-patch, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer weakness announce impacts software or systems such as RHEL.

Our Vigil@nce team determined that the severity of this security alert 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.

Solutions for this threat 

RHEL 8: new kpatch-patch packages.
New packages are available:
  RHEL 8.0-8.1: kpatch-patch 4_18_0-147-1-4.el8
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides network vulnerability bulletins. The technology watch team tracks security threats targeting the computer system.