CVE-2023-2156 (GCVE-0-2023-2156)

Vulnerability from cvelistv5 – Published: 2023-05-09 00:00 – Updated: 2024-08-02 06:12
VLAI
Summary
A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker to create a denial of service condition on the system.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel (RPL protocol) Affected: Reproducible on the latest mainline.
Show details on NVD website
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    "redhat_vex": {
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      "current_release_date": "2026-03-04T06:58:01+00:00",
      "cve": "CVE-2023-2156",
      "id": "CVE-2023-2156",
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      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: IPv6 RPL protocol reachable assertion leads to DoS",
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      "version": "3"
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      "current_release_date": "2026-05-27T04:25:11Z",
      "cve": "CVE-2023-2156",
      "id": "CVE-2023-2156",
      "initial_release_date": "2023-05-06T02:00:39Z",
      "product_status:known_affected": "165",
      "product_status:known_not_affected": "181",
      "product_status:recommended": "1184",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-2156",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-2156.json",
      "version": "72"
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}



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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.


Detection rules are retrieved from Rulezet.