FKIE_CVE-2023-2156

Vulnerability from fkie_nvd - Published: 2023-05-09 22:15 - Updated: 2026-06-17 05:51
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
References
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2023/05/17/8Mailing List
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2023/05/17/9Mailing List
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2023/05/18/1Mailing List
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2023/05/19/1Mailing List
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2196292Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20230622-0001/Mailing List, Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2023/dsa-5448Third Party Advisory, VDB Entry
secalert@redhat.comhttps://www.debian.org/security/2023/dsa-5453Third Party Advisory, VDB Entry
secalert@redhat.comhttps://www.zerodayinitiative.com/advisories/ZDI-23-547/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/05/17/8Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/05/17/9Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/05/18/1Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/05/19/1Mailing List
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2196292Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/08/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230622-0001/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5448Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5453Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-23-547/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
redhat enterprise_linux 9.0
fedoraproject fedora 38
debian debian_linux 10.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Linux kernel (RPL protocol)",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Reproducible on the latest mainline."
            }
          ]
        }
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  "cveTags": [],
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    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2023-2156",
  "lastModified": "2026-06-17T05:51:52.600",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2023-05-09T22:15:10.133",
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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

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.



Related by attack behaviour

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