CVE-2007-1497 (GCVE-0-2007-1497)

Vulnerability from cvelistv5 – Published: 2007-03-16 22:00 – Updated: 2024-08-07 12:59
VLAI
Summary
nf_conntrack in netfilter in the Linux kernel before 2.6.20.3 does not set nfctinfo during reassembly of fragmented packets, which leaves the default value as IP_CT_ESTABLISHED and might allow remote attackers to bypass certain rulesets using IPv6 fragments.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://www.redhat.com/support/errata/RHSA-2007-03… vendor-advisoryx_refsource_REDHAT
http://www.ubuntu.com/usn/usn-464-1 vendor-advisoryx_refsource_UBUNTU
http://www.novell.com/linux/security/advisories/2… vendor-advisoryx_refsource_SUSE
http://www.kernel.org/pub/linux/kernel/v2.6/Chang… x_refsource_CONFIRM
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.vupen.com/english/advisories/2007/0944 vdb-entryx_refsource_VUPEN
http://www.debian.org/security/2007/dsa-1289 vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/25288 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/26620 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/25228 third-party-advisoryx_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/25961 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/24492 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/25392 third-party-advisoryx_refsource_SECUNIA
http://www.osvdb.org/33028 vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/23976 vdb-entryx_refsource_BID
Date Public
2007-03-14 00:00
Show details on NVD website
To clipboard 

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        },
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          "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10457"
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          "source": "nvd@nist.gov",
          "type": "Primary"
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    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4C23C3FF-1016-4A18-8747-832F91EDB572",
                    "versionEndIncluding": "2.6.20.2",
                    "vulnerable": true
                  }
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                "negate": false,
                "operator": "OR"
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            ]
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "nf_conntrack in netfilter in the Linux kernel before 2.6.20.3 does not set nfctinfo during reassembly of fragmented packets, which leaves the default value as IP_CT_ESTABLISHED and might allow remote attackers to bypass certain rulesets using IPv6 fragments."
          },
          {
            "lang": "es",
            "value": "nf_conntrack en netfilter en el kernel de Linux anterior a 2.6.20.3 no fija nfctinfo durante el nuevo re-ensamble de paquetes fragmentados, lo cual deja el valor por defecto como IP_CT_ESTABLISHED y permitir\u00eda a atacantes remotos evitar ciertas reglas de asignaci\u00f3n utilizando fragmentos IPv6."
          }
        ],
        "id": "CVE-2007-1497",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2007-03-16T22:19:00.000",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/24492"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/25228"
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          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/25288"
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          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/25392"
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          {
            "source": "cve@mitre.org",
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          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/26620"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.debian.org/security/2007/dsa-1289"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.3"
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          {
            "source": "cve@mitre.org",
            "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:171"
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          {
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            "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:196"
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          {
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            "url": "http://www.novell.com/linux/security/advisories/2007_43_kernel.html"
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          {
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          {
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            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10457"
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          {
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "http://secunia.com/advisories/26620"
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          {
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10457"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
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          {
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              {
                "lang": "en",
                "value": "NVD-CWE-Other"
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            ],
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            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T13:20:28+00:00",
      "cve": "CVE-2007-1497",
      "id": "CVE-2007-1497",
      "initial_release_date": "2007-03-07T00:00:00+00:00",
      "product_status:fixed": "86",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "IPv6 fragments bypass in nf_conntrack netfilter code",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-1497.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2025-10-08T01:53:53Z",
      "cve": "CVE-2007-1497",
      "id": "CVE-2007-1497",
      "initial_release_date": "2023-02-15T06:12:38Z",
      "product_status:known_not_affected": "326",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2007-1497",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2007-1497.json",
      "version": "11"
    }
  }
}



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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

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.