Missing Initialization of a Variable Affecting kernel-bootwrapper package, versions <0:3.10.0-327.el7


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELBOOTWRAPPER-2053864
  • published26 Jul 2021
  • disclosed14 Oct 2015

Introduced: 14 Oct 2015

CVE-2015-7837  (opens in a new tab)
CWE-456  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Centos:7 kernel-bootwrapper to version 0:3.10.0-327.el7 or higher.

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 Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secure_boot flag across kexec reboot.

CVSS Scores

version 3.1