Integer Underflow Affecting kernel-rt-kvm package, versions <0:3.10.0-1160.108.1.rt56.1259.el7


Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-5918103
  • published 25 Sep 2023
  • disclosed 22 Sep 2023

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-1160.108.1.rt56.1259.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the h-&gt;nets array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.

CVSS Scores

version 3.1
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Snyk

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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NVD

7.8 high
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SUSE

7 high
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Red Hat

7 high