FKIE_CVE-2005-0468

Vulnerability from fkie_nvd - Published: 2005-05-02 04:00 - Updated: 2026-06-16 22:11
Severity
Summary
Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.
References
cve@mitre.orgftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.ascVendor Advisory
cve@mitre.orgftp://patches.sgi.com/support/free/security/advisories/20050405-01-PPatch
cve@mitre.orghttp://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000962
cve@mitre.orghttp://secunia.com/advisories/14745
cve@mitre.orghttp://secunia.com/advisories/17899
cve@mitre.orghttp://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1
cve@mitre.orghttp://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1
cve@mitre.orghttp://sunsolve.sun.com/search/document.do?assetkey=1-26-57755-1
cve@mitre.orghttp://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1
cve@mitre.orghttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txtPatch, Vendor Advisory
cve@mitre.orghttp://www.debian.de/security/2005/dsa-731
cve@mitre.orghttp://www.debian.org/security/2005/dsa-703Patch, Vendor Advisory
cve@mitre.orghttp://www.idefense.com/application/poi/display?id=221&type=vulnerabilitiesVendor Advisory
cve@mitre.orghttp://www.kb.cert.org/vuls/id/341908US Government Resource
cve@mitre.orghttp://www.mandriva.com/security/advisories?name=MDKSA-2005:061
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2005-327.htmlPatch, Vendor Advisory
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2005-330.htmlPatch, Vendor Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/12919
cve@mitre.orghttp://www.ubuntulinux.org/usn/usn-224-1
cve@mitre.orghttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640
af854a3a-2127-422b-91ae-364da2661108ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.ascVendor Advisory
af854a3a-2127-422b-91ae-364da2661108ftp://patches.sgi.com/support/free/security/advisories/20050405-01-PPatch
af854a3a-2127-422b-91ae-364da2661108http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000962
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/14745
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/17899
af854a3a-2127-422b-91ae-364da2661108http://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1
af854a3a-2127-422b-91ae-364da2661108http://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1
af854a3a-2127-422b-91ae-364da2661108http://sunsolve.sun.com/search/document.do?assetkey=1-26-57755-1
af854a3a-2127-422b-91ae-364da2661108http://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1
af854a3a-2127-422b-91ae-364da2661108http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txtPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.de/security/2005/dsa-731
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2005/dsa-703Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.idefense.com/application/poi/display?id=221&type=vulnerabilitiesVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/341908US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDKSA-2005:061
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2005-327.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2005-330.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/12919
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntulinux.org/usn/usn-224-1
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640
Impacted products
Vendor Product Version
ncsa telnet c
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ncsa:telnet:c:*:*:*:*:*:*:*",
              "matchCriteriaId": "260BF25B-E86C-472B-8D4C-190F7E06FEF7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated."
    }
  ],
  "id": "CVE-2005-0468",
  "lastModified": "2026-06-16T22:11:09.820",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": true,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2005-05-02T04:00:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.asc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20050405-01-P"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000962"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/14745"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/17899"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-57755-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.de/security/2005/dsa-731"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.debian.org/security/2005/dsa-703"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.idefense.com/application/poi/display?id=221\u0026type=vulnerabilities"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/341908"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2005:061"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.redhat.com/support/errata/RHSA-2005-327.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.redhat.com/support/errata/RHSA-2005-330.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/12919"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ubuntulinux.org/usn/usn-224-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "ftp://patches.sgi.com/support/free/security/advisories/20050405-01-P"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000962"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/14745"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/17899"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1"
    },
    {
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      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Vendor Advisory"
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      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.de/security/2005/dsa-731"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "http://www.idefense.com/application/poi/display?id=221\u0026type=vulnerabilities"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "http://www.kb.cert.org/vuls/id/341908"
    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/12919"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ubuntulinux.org/usn/usn-224-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vendorComments": [
    {
      "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.",
      "lastModified": "2007-03-14T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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.