Vulnerability-Lookup

CNVD-2021-43536

Vulnerability from cnvd - Published: 2021-06-21

Title

PoDoFo栈缓冲区溢出漏洞

Description

PoDoFo是一个免费、可移植且易于使用的PDF解析、修改和创建库。 PoDoFo 0.9.7版中的PdfEncrypt.cpp中的PdfEncryptMD5Base::ComputeOwnerKey函数存在栈缓冲区溢出漏洞。该漏洞源于对keyLength值检查不当。目前没有详细的漏洞细节提供。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://sourceforge.net/projects/podofo/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-30472

Impacted products

Name
PoDoFo PoDoFo 0.9.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-30472",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-30472"
    }
  },
  "description": "PoDoFo\u662f\u4e00\u4e2a\u514d\u8d39\u3001\u53ef\u79fb\u690d\u4e14\u6613\u4e8e\u4f7f\u7528\u7684PDF\u89e3\u6790\u3001\u4fee\u6539\u548c\u521b\u5efa\u5e93\u3002\n\nPoDoFo 0.9.7\u7248\u4e2d\u7684PdfEncrypt.cpp\u4e2d\u7684PdfEncryptMD5Base::ComputeOwnerKey\u51fd\u6570\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9keyLength\u503c\u68c0\u67e5\u4e0d\u5f53\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://sourceforge.net/projects/podofo/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43536",
  "openTime": "2021-06-21",
  "products": {
    "product": "PoDoFo PoDoFo 0.9.7"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-30472",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-27",
  "title": "PoDoFo\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-30472 (GCVE-0-2021-30472)

Vulnerability from cvelistv5 – Published: 2021-05-26 21:38 – Updated: 2024-08-03 22:32

Summary

A flaw was found in PoDoFo 0.9.7. A stack-based buffer overflow in PdfEncryptMD5Base::ComputeOwnerKey function in PdfEncrypt.cpp is possible because of a improper check of the keyLength value.

Severity

No CVSS data available.

CWE

CWE-119

Assigner

fedora redhat root

References

1 reference

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1947458	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	podofo	Affected: PoDoFo 0.9.7

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T22:32:41.103Z",
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              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1947458"
          }
        ],
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        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
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          "tags": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1947458"
        }
      ],
      "x_legacyV4Record": {
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          "ID": "CVE-2021-30472",
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  },
  "cveMetadata": {
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    "state": "PUBLISHED"
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}

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.