Vulnerability-Lookup

CNVD-2021-44697

Vulnerability from cnvd - Published: 2021-06-24

Title

Poppler缓冲区溢出漏洞（CNVD-2021-44697）

Description

Poppler是基于xpdf-3.0代码库的PDF渲染库。 Poppler 20.12.1中的DCTStream.cc中的DCTStream::getChars存在堆缓冲区溢出漏洞，攻击者可通过特制PDF文档利用该漏洞导致堆缓冲区溢出。

Severity

中

Patch Name

Poppler缓冲区溢出漏洞（CNVD-2021-44697）的补丁

Patch Description

Poppler是基于xpdf-3.0代码库的PDF渲染库。 Poppler 20.12.1中的DCTStream.cc中的DCTStream::getChars存在堆缓冲区溢出漏洞，攻击者可通过特制PDF文档利用该漏洞导致堆缓冲区溢出。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://gitlab.freedesktop.org/poppler/poppler/-/commit/ae614bf8ab42c9d0c7ac57ecdfdcbcfc4ff6c639

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-35702

Impacted products

Name
Poppler Poppler 20.12.1

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-35702",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-35702"
    }
  },
  "description": "Poppler\u662f\u57fa\u4e8expdf-3.0\u4ee3\u7801\u5e93\u7684PDF\u6e32\u67d3\u5e93\u3002\n\nPoppler 20.12.1\u4e2d\u7684DCTStream.cc\u4e2d\u7684DCTStream::getChars\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\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://gitlab.freedesktop.org/poppler/poppler/-/commit/ae614bf8ab42c9d0c7ac57ecdfdcbcfc4ff6c639",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44697",
  "openTime": "2021-06-24",
  "patchDescription": "Poppler\u662f\u57fa\u4e8expdf-3.0\u4ee3\u7801\u5e93\u7684PDF\u6e32\u67d3\u5e93\u3002\r\n\r\nPoppler 20.12.1\u4e2d\u7684DCTStream.cc\u4e2d\u7684DCTStream::getChars\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\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": "Poppler\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-44697\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Poppler Poppler 20.12.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-35702",
  "serverity": "\u4e2d",
  "submitTime": "2020-12-28",
  "title": "Poppler\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-44697\uff09"
}

CVE-2020-35702 (GCVE-0-2020-35702)

Vulnerability from cvelistv5 – Published: 2020-12-25 01:02 – Updated: 2024-08-04 17:09 Disputed

Summary

DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document. NOTE: later reports indicate that this only affects builds from Poppler git clones in late December 2020, not the 20.12.1 release. In this situation, it should NOT be considered a Poppler vulnerability. However, several third-party Open Source projects directly rely on Poppler git clones made at arbitrary times, and therefore the CVE remains useful to users of those projects

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://gitlab.freedesktop.org/poppler/poppler/-/…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:09:15.094Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gitlab.freedesktop.org/poppler/poppler/-/issues/1011"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "descriptions": [
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          "value": "DCTStream::getChars in DCTStream.cc in Poppler 20.12.1 has a heap-based buffer overflow via a crafted PDF document. NOTE: later reports indicate that this only affects builds from Poppler git clones in late December 2020, not the 20.12.1 release. In this situation, it should NOT be considered a Poppler vulnerability. However, several third-party Open Source projects directly rely on Poppler git clones made at arbitrary times, and therefore the CVE remains useful to users of those projects"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-28T08:36:57.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gitlab.freedesktop.org/poppler/poppler/-/issues/1011"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-35702",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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                "vendor_name": "n/a"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
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              "description": [
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                  "value": "n/a"
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        "references": {
          "reference_data": [
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            }
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2020-12-25T01:02:58.000Z",
    "dateReserved": "2020-12-25T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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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CNVD-2021-44697

CVE-2020-35702 (GCVE-0-2020-35702)

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