Vulnerability-Lookup

CNVD-2021-94951

Vulnerability from cnvd - Published: 2021-12-07

Title

Exiv2缓冲区溢出漏洞（CNVD-2021-94951）

Description

Exiv2是一个跨平台C++库和用于管理图像元数据的命令行实用程序。 Exiv2 0.27.99.0版中的nikonmn_int.cpp中的Exiv2::Internal::Nikon1MakerNote::print0x0088存在缓冲区溢出漏洞。攻击者可利用该漏洞获取信息。

Severity

中

Patch Name

Exiv2缓冲区溢出漏洞（CNVD-2021-94951）的补丁

Patch Description

Exiv2是一个跨平台C++库和用于管理图像元数据的命令行实用程序。 Exiv2 0.27.99.0版中的nikonmn_int.cpp中的Exiv2::Internal::Nikon1MakerNote::print0x0088存在缓冲区溢出漏洞。攻击者可利用该漏洞获取信息。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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/Exiv2/exiv2/pull/758

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-18771

Impacted products

Name
Exiv2 Exiv2 0.27.99.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-18771",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-18771"
    }
  },
  "description": "Exiv2\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0C++\u5e93\u548c\u7528\u4e8e\u7ba1\u7406\u56fe\u50cf\u5143\u6570\u636e\u7684\u547d\u4ee4\u884c\u5b9e\u7528\u7a0b\u5e8f\u3002\n\nExiv2 0.27.99.0\u7248\u4e2d\u7684nikonmn_int.cpp\u4e2d\u7684Exiv2::Internal::Nikon1MakerNote::print0x0088\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/Exiv2/exiv2/pull/758",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94951",
  "openTime": "2021-12-07",
  "patchDescription": "Exiv2\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0C++\u5e93\u548c\u7528\u4e8e\u7ba1\u7406\u56fe\u50cf\u5143\u6570\u636e\u7684\u547d\u4ee4\u884c\u5b9e\u7528\u7a0b\u5e8f\u3002\r\n\r\nExiv2 0.27.99.0\u7248\u4e2d\u7684nikonmn_int.cpp\u4e2d\u7684Exiv2::Internal::Nikon1MakerNote::print0x0088\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u4fe1\u606f\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": "Exiv2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-94951\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Exiv2 Exiv2 0.27.99.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-18771",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-24",
  "title": "Exiv2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-94951\uff09"
}

CVE-2020-18771 (GCVE-0-2020-18771)

Vulnerability from cvelistv5 – Published: 2021-08-23 00:00 – Updated: 2024-11-18 21:43

Summary

Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-03 19:32 UTC

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://github.com/Exiv2/exiv2/issues/756
https://cwe.mitre.org/data/definitions/126.html
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://security.gentoo.org/glsa/202312-06	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T14:08:30.386Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Exiv2/exiv2/issues/756"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cwe.mitre.org/data/definitions/126.html"
          },
          {
            "name": "[debian-lts-announce] 20230110 [SECURITY] [DLA 3265-1] exiv2 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html"
          },
          {
            "name": "GLSA-202312-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202312-06"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-18771",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-03T19:32:41.680250Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-18T21:43:21.259Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-22T10:06:40.541Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/Exiv2/exiv2/issues/756"
        },
        {
          "url": "https://cwe.mitre.org/data/definitions/126.html"
        },
        {
          "name": "[debian-lts-announce] 20230110 [SECURITY] [DLA 3265-1] exiv2 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html"
        },
        {
          "name": "GLSA-202312-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202312-06"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-18771",
    "datePublished": "2021-08-23T00:00:00.000Z",
    "dateReserved": "2020-08-13T00:00:00.000Z",
    "dateUpdated": "2024-11-18T21:43:21.259Z",
    "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.
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Action not permitted

CNVD-2021-94951

CVE-2020-18771 (GCVE-0-2020-18771)

Tags

Sightings

Nomenclature

Related by attack behaviour