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CVE-2023-4244 (GCVE-0-2023-4244)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:53 – Updated: 2026-07-28 14:43
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. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.
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 CPE status
Linux Kernel Affected: 0.0 , < 4.19.316 (custom)
Affected: 4.20 , < 5.4.262 (custom)
Affected: 5.5 , < 5.10.198 (custom)
Affected: 5.11 , < 5.15.134 (custom)
Affected: 5.16 , < 6.1.56 (custom)
Affected: 6.2 , < 6.4.11 (custom)
guessed Create a notification for this product.
Date Public
2023-08-10 17:47
Credits
Bien Pham from Team Orca of Sea Security Team
Show details on NVD website
To clipboard 

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      "title": "kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-4244.json",
      "version": "103"
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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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Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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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