Buffer Overflow Affecting kernel-bootwrapper package, versions <0:3.10.0-1127.el7


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    1.16% (86th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-7972541
  • published 14 Sep 2024
  • disclosed 11 Sep 2019

How to fix?

Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-1127.el7 or higher.
This issue was patched in RHSA-2020:1016.

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.

An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.

CVSS Scores

version 3.1
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NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

8.4 high