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FKIE_CVE-2023-3338

Vulnerability from fkie_nvd - Published: 2023-06-30 22:15 - Updated: 2026-06-17 06:13
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-3338Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2218618Issue Tracking
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://seclists.org/oss-sec/2023/q2/276Exploit, Mailing List, Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20230824-0005/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2023/dsa-5480Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-3338Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2218618Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/oss-sec/2023/q2/276Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230824-0005/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5480Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
netapp active_iq_unified_manager -
debian debian_linux 10.0
debian debian_linux 11.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "unaffected",
              "version": "6.5-rc1"
            }
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        },
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          ],
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          "packageName": "kernel",
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          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
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          "vendor": "Red Hat"
        },
        {
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          ],
          "defaultStatus": "unaffected",
          "packageName": "kernel-rt",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://packages.fedoraproject.org/",
          "defaultStatus": "affected",
          "packageName": "kernel",
          "product": "Fedora",
          "vendor": "Fedora"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
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              "versionEndExcluding": "6.5",
              "vulnerable": true
            }
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          "operator": "OR"
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    {
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A null pointer dereference flaw was found in the Linux kernel\u0027s DECnet networking protocol. This issue could allow a remote user to crash the system."
    }
  ],
  "id": "CVE-2023-3338",
  "lastModified": "2026-06-17T06:13:50.867",
  "metrics": {
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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        "ssvcData": {
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          "options": [
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            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-03-05T18:41:18.404363Z",
          "version": "2.0.3"
        }
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  },
  "published": "2023-06-30T22:15:10.270",
  "references": [
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      "source": "nvd@nist.gov",
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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.


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.