Vulnerability-Lookup

FKIE_CVE-2011-1930

Vulnerability from fkie_nvd - Published: 2019-11-14 03:15 - Updated: 2026-06-16 23:30

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options.

References

URL	Tags
secalert@redhat.com	http://security.gentoo.org/glsa/glsa-201309-21.xml	Third Party Advisory
secalert@redhat.com	http://www.openwall.com/lists/oss-security/2012/05/22/12	Mailing List, Third Party Advisory
secalert@redhat.com	http://www.securityfocus.com/bid/47924	Third Party Advisory, VDB Entry
secalert@redhat.com	https://access.redhat.com/security/cve/cve-2011-1930	Not Applicable, Third Party Advisory
secalert@redhat.com	https://security-tracker.debian.org/tracker/CVE-2011-1930	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://security.gentoo.org/glsa/glsa-201309-21.xml	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2012/05/22/12	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/47924	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/security/cve/cve-2011-1930	Not Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security-tracker.debian.org/tracker/CVE-2011-1930	Third Party Advisory

Impacted products

Vendor	Product	Version
klibc_project	klibc	*
debian	debian_linux	8.0
debian	debian_linux	9.0
debian	debian_linux	10.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "klibc",
          "vendor": "klibc",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.20"
            },
            {
              "status": "affected",
              "version": "1.5.21"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:klibc_project:klibc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0A18729B-6AD1-409B-9288-322CC30D3079",
              "versionEndExcluding": "1.5.25",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options."
    },
    {
      "lang": "es",
      "value": "En klibc versiones 1.5.20 y 1.5.21, las opciones de DHCP escritas por ipconfig en el archivo /tmp/net-$DEVICE.conf no se escapan apropiadamente. Esto puede permitir a un atacante remoto enviar una respuesta DHCP especialmente dise\u00f1ada que podr\u00eda ejecutar c\u00f3digo arbitrario con los privilegios de cualquier proceso que genere opciones DHCP."
    }
  ],
  "id": "CVE-2011-1930",
  "lastModified": "2026-06-16T23:30:24.900",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-11-14T03:15:10.510",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://security.gentoo.org/glsa/glsa-201309-21.xml"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2012/05/22/12"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/47924"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/cve-2011-1930"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-1930"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://security.gentoo.org/glsa/glsa-201309-21.xml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2012/05/22/12"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/47924"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/cve-2011-1930"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security-tracker.debian.org/tracker/CVE-2011-1930"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2011-1930 (GCVE-0-2011-1930)

Vulnerability from cvelistv5 – Published: 2019-11-14 02:01 – Updated: 2024-08-06 22:46

Summary

Severity

No CVSS data available.

CWE

Other

Assigner

redhat redhat root

References

5 references

URL	Tags
https://security-tracker.debian.org/tracker/CVE-2…	x_refsource_MISC
https://access.redhat.com/security/cve/cve-2011-1930	x_refsource_MISC
http://security.gentoo.org/glsa/glsa-201309-21.xml	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2012/0…	x_refsource_MISC
http://www.securityfocus.com/bid/47924	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
klibc	klibc	Affected: 1.5.20 Affected: 1.5.21

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-06T22:46:00.615Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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            "url": "http://www.securityfocus.com/bid/47924"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
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          "vendor": "klibc",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.20"
            },
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        {
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.