CVE-2016-6830 (GCVE-0-2016-6830)

Vulnerability from cvelistv5 – Published: 2017-01-10 15:00 – Updated: 2024-08-06 01:43
VLAI
Summary
The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released).
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1088 records in the last 180 days details
References
URL Tags
http://www.securityfocus.com/bid/92550 vdb-entryx_refsource_BID
http://lists.nongnu.org/archive/html/chicken-anno… mailing-listx_refsource_MLIST
Date Public
2016-08-12 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T01:43:38.181Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "92550",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/92550"
          },
          {
            "name": "[chicken-announce] 20160812 [SECURITY] Buffer overrun in process-execute and process-spawn",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-08-12T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-01-10T12:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "92550",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/92550"
        },
        {
          "name": "[chicken-announce] 20160812 [SECURITY] Buffer overrun in process-execute and process-spawn",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-6830",
    "datePublished": "2017-01-10T15:00:00.000Z",
    "dateReserved": "2016-08-17T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:43:38.181Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-6830",
      "date": "2026-11-03",
      "epss": "0.02166",
      "percentile": "0.82274"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:call-cc:chicken:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "01FC43EF-B98F-4DF2-9286-89CE7D9BE8DD",
                  "versionEndIncluding": "4.11.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released)."
        },
        {
          "lang": "es",
          "value": "Los procedimientos \"process-execute\" y \"process-spawn\" en CHICKEN Scheme utilizaron b\u00fafers de tama\u00f1o fijo para mantener los argumentos y las variables de entorno para usar en su llamada execve(). Esto podr\u00eda permitir que las listas de variable de argumento/entorno suministradas por el usuario desencadenaran un desbordamiento de b\u00fafer. Esto afecta a todas las versiones de CHICKEN hasta la 4.11 inclusive (esto ser\u00e1 fijado en la versi\u00f3n 4.12 y 5.0, que a\u00fan no se han liberado)."
        }
      ],
      "id": "CVE-2016-6830",
      "lastModified": "2024-11-21T02:56:55.113",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": true,
            "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": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2017-01-10T15:59:00.457",
      "references": [
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
        },
        {
          "source": "secalert@redhat.com",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/92550"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/92550"
        }
      ],
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-119"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:call-cc:chicken:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "01FC43EF-B98F-4DF2-9286-89CE7D9BE8DD",
                    "versionEndIncluding": "4.11.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The \"process-execute\" and \"process-spawn\" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call. This would allow user-supplied argument/environment variable lists to trigger a buffer overrun. This affects all releases of CHICKEN up to and including 4.11 (it will be fixed in 4.12 and 5.0, which are not yet released)."
          },
          {
            "lang": "es",
            "value": "Los procedimientos \"process-execute\" y \"process-spawn\" en CHICKEN Scheme utilizaron b\u00fafers de tama\u00f1o fijo para mantener los argumentos y las variables de entorno para usar en su llamada execve(). Esto podr\u00eda permitir que las listas de variable de argumento/entorno suministradas por el usuario desencadenaran un desbordamiento de b\u00fafer. Esto afecta a todas las versiones de CHICKEN hasta la 4.11 inclusive (esto ser\u00e1 fijado en la versi\u00f3n 4.12 y 5.0, que a\u00fan no se han liberado)."
          }
        ],
        "id": "CVE-2016-6830",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": true,
              "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": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2017-01-10T15:59:00.457",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/92550"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://lists.nongnu.org/archive/html/chicken-announce/2016-08/msg00001.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/92550"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-119"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T17:19:19+00:00",
      "cve": "CVE-2016-6830",
      "id": "CVE-2016-6830",
      "initial_release_date": "2016-08-12T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "chicken: Buffer overflow and a memory leak in the POSIX unit\u0027s procedures process-execute and process-spawn",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-6830.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    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.