Expected Behavior Violation Affecting kernel-zfcpdump-devel package, versions <0:4.18.0-193.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.12% (48th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELZFCPDUMPDEVEL-3717254
  • published 26 Jul 2021
  • disclosed 11 Dec 2019

How to fix?

Upgrade RHEL:8 kernel-zfcpdump-devel to version 0:4.18.0-193.el8 or higher.
This issue was patched in RHSA-2020:1769.

NVD Description

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

An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations before the required authentication process has completed. This could lead to different denial-of-service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

CVSS Scores

version 3.1
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NVD

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

6.5 medium
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SUSE

7.4 high