FKIE_CVE-2011-4539

Vulnerability from fkie_nvd - Published: 2011-12-08 11:55 - Updated: 2025-04-11 00:51
Severity ?
Summary
dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
References
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://secunia.com/advisories/47153Third Party Advisory
cve@mitre.orghttp://secunia.com/advisories/47178Third Party Advisory
cve@mitre.orghttp://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
cve@mitre.orghttp://www.debian.org/security/2012/dsa-2519Third Party Advisory
cve@mitre.orghttp://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
cve@mitre.orghttps://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47153Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47178Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2012/dsa-2519Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2011:182Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/50971Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1026393Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1309-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/71680Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.isc.org/software/dhcp/advisories/cve-2011-4539Vendor Advisory
Impacted products
Vendor Product Version
isc dhcp 4.0
isc dhcp 4.0.0
isc dhcp 4.0.1
isc dhcp 4.0.1
isc dhcp 4.0.1
isc dhcp 4.0.2
isc dhcp 4.0.2
isc dhcp 4.0.2
isc dhcp 4.0.2
isc dhcp 4.0.2
isc dhcp 4.0.3
isc dhcp 4.0.3
isc dhcp 4.0.3
isc dhcp 4.1.1
isc dhcp 4.1.1
isc dhcp 4.1.2
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.0
isc dhcp 4.2.1
isc dhcp 4.2.1
isc dhcp 4.2.1
isc dhcp 4.2.2
isc dhcp 4.2.2
isc dhcp 4.2.2
isc dhcp 4.2.3
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
canonical ubuntu_linux 11.04
canonical ubuntu_linux 11.10
debian debian_linux 6.0
debian debian_linux 7.0
To clipboard 

{
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          ],
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet."
    },
    {
      "lang": "es",
      "value": "dhcpd en ISC DHCP v4.x antes de v4.2.3-P1 y v4.1-ESV antes de v4.1-ESV-R4 no manipula correctamente expresiones regulares en dhcpd.conf, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda del deminio) a trav\u00e9s de un paquete de petici\u00f3n modificado."
    }
  ],
  "id": "CVE-2011-4539",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-12-08T11:55:02.407",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://secunia.com/advisories/47153"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://secunia.com/advisories/47178"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://security.gentoo.org/glsa/glsa-201301-06.xml"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.debian.org/security/2012/dsa-2519"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:182"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/50971"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id?1026393"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.ubuntu.com/usn/USN-1309-1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/71680"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.isc.org/software/dhcp/advisories/cve-2011-4539"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://secunia.com/advisories/47153"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://secunia.com/advisories/47178"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://security.gentoo.org/glsa/glsa-201301-06.xml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.debian.org/security/2012/dsa-2519"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:182"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/50971"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securitytracker.com/id?1026393"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.ubuntu.com/usn/USN-1309-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/71680"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.isc.org/software/dhcp/advisories/cve-2011-4539"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Author Source Type Date

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.