CVE-2023-4015 (GCVE-0-2023-4015)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:52 – Updated: 2025-02-13 17:03
VLAI
Title
Use-after-free in Linux kernel's netfilter: nf_tables component
Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 6.4 , < 6.5 (custom)
Create a notification for this product.
Date Public
2023-07-26 14:48
Credits
Kevin Rich
Show details on NVD website
To clipboard 

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      "current_release_date": "2025-11-21T11:16:14+00:00",
      "cve": "CVE-2023-4015",
      "id": "CVE-2023-4015",
      "initial_release_date": "2023-09-06T00:00:00+00:00",
      "product_status:fixed": "1285",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "157",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: use after free in nft_immediate_deactivate",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-4015.json",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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