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Execution with Unnecessary Privileges Affecting kernel-bootwrapper 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)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-7958614
  • published 14 Sep 2024
  • disclosed 12 Jan 2017
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Introduced: 12 Jan 2017

CVE-2017-2583 Open this link in a new tab
CWE-250 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-bootwrapper 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-bootwrapper package and not the kernel-bootwrapper 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.