Out-of-bounds Write Affecting kernel-tools package, versions <0:4.18.0-305.40.1.el8_4


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.95% (84th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELTOOLS-4163743
  • published 11 Feb 2022
  • disclosed 10 Feb 2022

How to fix?

Upgrade RHEL:8 kernel-tools to version 0:4.18.0-305.40.1.el8_4 or higher.
This issue was patched in RHSA-2022:0777.

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 stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.

CVSS Scores

version 3.1
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NVD

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

7.1 high
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SUSE

8.1 high