CVE-2023-6622 (GCVE-0-2023-6622)

Vulnerability from cvelistv5 – Published: 2023-12-08 17:33 – Updated: 2025-11-06 19:47
VLAI
Title
Kernel: null pointer dereference vulnerability in nft_dynset_init()
Summary
A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
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
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.el8_10 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::crb
 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::nfv
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 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
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
 Create a notification for this product.
Date Public
2023-12-08 11:56
Credits
Red Hat would like to thank Xingyuan Mo ((IceSword Lab)) for reporting this issue.
Show details on NVD website
To clipboard 

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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G3AGDVE3KBLOOYBPISFDS74R4YAZEDAY/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-06T19:12:17+00:00",
      "cve": "CVE-2023-6622",
      "id": "CVE-2023-6622",
      "initial_release_date": "2023-12-08T11:56:00+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: null pointer dereference vulnerability in nft_dynset_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-6622.json",
      "version": "3"
    }
  }
}



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Tags
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.