FKIE_CVE-2011-4326

Vulnerability from fkie_nvd - Published: 2012-05-17 11:00 - Updated: 2026-06-16 23:34
Severity
Summary
The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device.
References
secalert@redhat.comhttp://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
secalert@redhat.comhttp://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
secalert@redhat.comhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/11/21/10Mailing List
secalert@redhat.comhttp://www.securityfocus.com/bid/50751Third Party Advisory, VDB Entry
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=682066Exploit, Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=755584Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbeddePatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://downloads.avaya.com/css/P8/documents/100156038Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a9cf73ea7ff78f52662c8658d93c226effbbedde
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/11/21/10Mailing List
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/50751Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=682066Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=755584Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/a9cf73ea7ff78f52662c8658d93c226effbbeddePatch, Third Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
avaya 96x1_ip_deskphone_firmware *
avaya 96x1_ip_deskphone -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n udp6_ufo_fragment en net/ipv6/udp.c en el kernel de Linux antes de v2.6.39, cuando la opci\u00f3n de \"UDP Fragmentation Offload\" (UFO) est\u00e1 activada, permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda del sistema) mediante el env\u00edo de paquetes IPv6 UDP a un dispositivo de puente."
    }
  ],
  "id": "CVE-2011-4326",
  "lastModified": "2026-06-16T23:34:46.843",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-05-17T11:00:33.837",
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-399"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

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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.