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Use After Free Affecting kernel-rt-modules-core 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-KERNELRTMODULESCORE-5902856
  • published 14 Sep 2023
  • disclosed 12 Sep 2023
Report a new vulnerability Found a mistake?

Introduced: 12 Sep 2023

CVE-2023-3390 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-core 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-core package and not the kernel-rt-modules-core package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c.

Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.

We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.

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