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Use After Free Affecting kernel-rt-modules-extra package, versions <0:5.14.0-284.30.1.rt14.315.el9_2

Severity

 Recommended
0.0
high
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-ALMALINUX9-KERNELRTMODULESEXTRA-5902935
  • published 14 Sep 2023
  • disclosed 12 Sep 2023
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Introduced: 12 Sep 2023

CVE-2023-4147 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 kernel-rt-modules-extra to version 0:5.14.0-284.30.1.rt14.315.el9_2 or higher.
This issue was patched in ALSA-2023:5091.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

References

CVSS Scores

version 3.1
Expand this section

NVD

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

SUSE

7.8 high
Expand this section

Red Hat

7.8 high