Execution with Unnecessary Privileges Affecting kernel-kdump-devel package, versions <0:3.10.0-514.26.1.el7


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.18% (57th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-RHEL7-KERNELKDUMPDEVEL-5201300
  • published 26 Jul 2021
  • disclosed 12 Jan 2017

How to fix?

Upgrade RHEL:7 kernel-kdump-devel to version 0:3.10.0-514.26.1.el7 or higher.
This issue was patched in RHSA-2017:1615.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-kdump-devel package and not the kernel-kdump-devel package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.