Vulnerability-Lookup

FKIE_CVE-2019-12806

Vulnerability from fkie_nvd - Published: 2019-08-13 20:15 - Updated: 2026-06-17 02:15

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets.

References

	URL	Tags
	vuln@krcert.or.kr	https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111	Third Party Advisory, VDB Entry
	af854a3a-2127-422b-91ae-364da2661108	https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111	Third Party Advisory, VDB Entry

Impacted products

	Vendor	Product	Version
	crosscert	unisign	*
	microsoft	windows	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "UniSign",
          "vendor": "CROSSCERT",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.4.0"
            }
          ]
        }
      ],
      "source": "vuln@krcert.or.kr"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:crosscert:unisign:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "74FF4284-034F-49F4-9D18-57FB47B3E3F3",
              "versionEndIncluding": "2.0.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets."
    },
    {
      "lang": "es",
      "value": "UniSign 2.0.4.0 y versiones anteriores contienen una vulnerabilidad de desbordamiento del b\u00fafer basada en la pila que puede sobrescribir la pila con datos arbitrarios, debido a un desbordamiento del b\u00fafer en una biblioteca. Eso lleva al atacante remoto a ejecutar c\u00f3digo arbitrario a trav\u00e9s de paquetes https dise\u00f1ados."
    }
  ],
  "id": "CVE-2019-12806",
  "lastModified": "2026-06-17T02:15:30.900",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-08-13T20:15:11.807",
  "references": [
    {
      "source": "vuln@krcert.or.kr",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111"
    }
  ],
  "sourceIdentifier": "vuln@krcert.or.kr",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "vuln@krcert.or.kr",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2019-12806 (GCVE-0-2019-12806)

Vulnerability from cvelistv5 – Published: 2019-08-13 19:10 – Updated: 2024-08-04 23:32

Summary

Severity

No CVSS data available.

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

krcert mitre root

References

1 reference

URL	Tags
https://www.boho.or.kr/krcert/secNoticeView.do?bu…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
CROSSCERT	UniSign	Affected: 2.0.4.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T23:32:55.472Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "UniSign",
          "vendor": "CROSSCERT",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.4.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "UniSign 2.0.4.0 and earlier version contains a stack-based buffer overflow vulnerability which can overwrite the stack with arbitrary data, due to a buffer overflow in a library. That leads remote attacker to execute arbitrary code via crafted https packets."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-08-13T19:10:06.000Z",
        "orgId": "cdd7a122-0fae-4202-8d86-14efbacc2863",
        "shortName": "krcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vuln@krcert.or.kr",
          "ID": "CVE-2019-12806",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "UniSign",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "2.0.4.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "CROSSCERT"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111",
              "refsource": "MISC",
              "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=35111"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cdd7a122-0fae-4202-8d86-14efbacc2863",
    "assignerShortName": "krcert",
    "cveId": "CVE-2019-12806",
    "datePublished": "2019-08-13T19:10:06.000Z",
    "dateReserved": "2019-06-13T00:00:00.000Z",
    "dateUpdated": "2024-08-04T23:32:55.472Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.