Heap-based Buffer Overflow Affecting kernel-tools package, versions <0:4.18.0-147.5.1.el8_1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    1.09% (85th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELTOOLS-3643789
  • published 26 Jul 2021
  • disclosed 25 Nov 2019

How to fix?

Upgrade RHEL:8 kernel-tools to version 0:4.18.0-147.5.1.el8_1 or higher.
This issue was patched in RHSA-2020:0339.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A heap-based buffer overflow was discovered in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.

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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SUSE

8 high