Vulnerability-Lookup

CNVD-2021-46470

Vulnerability from cnvd - Published: 2021-07-01

Title

ezPDF存在未明漏洞

Description

ezPDF是一款手机PDF阅读器。它可以帮助用户们去搜索手机里的所有PDF文件,并且可以帮助用户快速打开这些PDF文件进行查看。 ezPDF存在安全漏洞，该漏洞源于参数验证不足引起的内存损坏。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

ezPDF存在未明漏洞的补丁

Patch Description

ezPDF是一款手机PDF阅读器。它可以帮助用户们去搜索手机里的所有PDF文件,并且可以帮助用户快速打开这些PDF文件进行查看。 ezPDF存在安全漏洞，该漏洞源于参数验证不足引起的内存损坏。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： http://www.ezpdf.co.kr/editor3/main.do

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-7870

Impacted products

Name
ezPDF ezPDF

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7870"
    }
  },
  "description": "ezPDF\u662f\u4e00\u6b3e\u624b\u673aPDF\u9605\u8bfb\u5668\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u4eec\u53bb\u641c\u7d22\u624b\u673a\u91cc\u7684\u6240\u6709PDF\u6587\u4ef6,\u5e76\u4e14\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u6253\u5f00\u8fd9\u4e9bPDF\u6587\u4ef6\u8fdb\u884c\u67e5\u770b\u3002\n\nezPDF\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53c2\u6570\u9a8c\u8bc1\u4e0d\u8db3\u5f15\u8d77\u7684\u5185\u5b58\u635f\u574f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttp://www.ezpdf.co.kr/editor3/main.do",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-46470",
  "openTime": "2021-07-01",
  "patchDescription": "ezPDF\u662f\u4e00\u6b3e\u624b\u673aPDF\u9605\u8bfb\u5668\u3002\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u4eec\u53bb\u641c\u7d22\u624b\u673a\u91cc\u7684\u6240\u6709PDF\u6587\u4ef6,\u5e76\u4e14\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u6253\u5f00\u8fd9\u4e9bPDF\u6587\u4ef6\u8fdb\u884c\u67e5\u770b\u3002\r\n\r\nezPDF\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53c2\u6570\u9a8c\u8bc1\u4e0d\u8db3\u5f15\u8d77\u7684\u5185\u5b58\u635f\u574f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "ezPDF\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ezPDF ezPDF"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7870",
  "serverity": "\u4e2d",
  "submitTime": "2021-07-01",
  "title": "ezPDF\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2020-7870 (GCVE-0-2020-7870)

Vulnerability from cvelistv5 – Published: 2021-06-29 13:15 – Updated: 2024-08-04 09:41

Summary

A memory corruption vulnerability exists when ezPDF improperly handles the parameter. This vulnerability exists due to insufficient validation of the parameter.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-20 - Improper Input Validation

Assigner

krcert mitre root Scorecard

References

1 reference

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

Impacted products

2 products

Vendor	Product	Version
UNIDOCS	ezPDF Reader	Affected: 3 , ≤ 3.0.0.1 (custom)
UNIDOCS	ezPDF Editor	Affected: 3 , ≤ 3.0.6.4 (custom)

Credits

Namjon Jo

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:41:01.926Z",
          "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=36099"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ezPDF Reader",
          "vendor": "UNIDOCS",
          "versions": [
            {
              "lessThanOrEqual": "3.0.0.1",
              "status": "affected",
              "version": "3",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "ezPDF Editor",
          "vendor": "UNIDOCS",
          "versions": [
            {
              "lessThanOrEqual": "3.0.6.4",
              "status": "affected",
              "version": "3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Namjon Jo"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A memory corruption vulnerability exists when ezPDF improperly handles the parameter. This vulnerability exists due to insufficient validation of the parameter."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-29T13:15:26.000Z",
        "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=36099"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vuln@krcert.or.kr",
          "ID": "CVE-2020-7870",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "ezPDF Reader",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "3",
                            "version_value": "3.0.0.1"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "ezPDF Editor",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "3",
                            "version_value": "3.0.6.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "UNIDOCS"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Namjon Jo"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            {
              "lang": "eng",
              "value": "A memory corruption vulnerability exists when ezPDF improperly handles the parameter. This vulnerability exists due to insufficient validation of the parameter."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
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                  "lang": "eng",
                  "value": "CWE-20 Improper Input Validation"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36099",
              "refsource": "MISC",
              "url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36099"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cdd7a122-0fae-4202-8d86-14efbacc2863",
    "assignerShortName": "krcert",
    "cveId": "CVE-2020-7870",
    "datePublished": "2021-06-29T13:15:26.000Z",
    "dateReserved": "2020-01-22T00:00:00.000Z",
    "dateUpdated": "2024-08-04T09:41:01.926Z",
    "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.

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.

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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.

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CNVD-2021-46470

CVE-2020-7870 (GCVE-0-2020-7870)

Tags

Sightings

Nomenclature

Related by attack behaviour