Out-of-bounds Read Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-553.rt7.342.el8_10


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.05% (18th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTDEBUGKVM-5951759
  • published 9 Oct 2023
  • disclosed 30 Aug 2023

How to fix?

Upgrade Centos:8 kernel-rt-debug-kvm to version 0:4.18.0-553.rt7.342.el8_10 or higher.

NVD Description

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

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.

CVSS Scores

version 3.1
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NVD

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

5.1 medium
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SUSE

4.4 medium