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CVE-2023-39189 (GCVE-0-2023-39189)

Vulnerability from cvelistv5 – Published: 2023-10-09 17:57 – Updated: 2025-11-06 19:47
VLAI
Title
Kernel: netfilter: nftables out-of-bounds read in nf_osf_match_one()
Summary
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.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.rt7.342.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::nfv
    cpe:/a:redhat:enterprise_linux:8::realtime
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-427.13.1.el9_4 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/a:redhat:enterprise_linux:9::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2023-08-30 00:00
Show details on NVD website
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-06T19:21:13+00:00",
      "cve": "CVE-2023-39189",
      "id": "CVE-2023-39189",
      "initial_release_date": "2023-08-30T00:00:00+00:00",
      "product_status:fixed": "429",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nftables out-of-bounds read in nf_osf_match_one()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-39189.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-04T00:32:26Z",
      "cve": "CVE-2023-39189",
      "id": "CVE-2023-39189",
      "initial_release_date": "2023-10-10T01:30:43Z",
      "product_status:known_affected": "269",
      "product_status:recommended": "1330",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-39189",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-39189.json",
      "version": "64"
    }
  }
}



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Taxonomy of the tags.





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

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.