Vulnerability-Lookup

CNVD-2021-101527

Vulnerability from cnvd - Published: 2021-12-22

Title

GOCR释放后重用漏洞

Description

GOCR是一款开源OCR（光学字符识别）程序。 GOCR 0.53-20200802及更早版本中的pgm2asc.c中的context_correction()存在释放后重用漏洞。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/p/jocr/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-33480

Impacted products

Name
GOCR GOCR <=0.53-20200802

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-33480",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-33480"
    }
  },
  "description": "GOCR\u662f\u4e00\u6b3e\u5f00\u6e90OCR\uff08\u5149\u5b66\u5b57\u7b26\u8bc6\u522b\uff09\u7a0b\u5e8f\u3002\n\nGOCR 0.53-20200802\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684pgm2asc.c\u4e2d\u7684context_correction()\u5b58\u5728\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e\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/p/jocr/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-101527",
  "openTime": "2021-12-22",
  "products": {
    "product": "GOCR GOCR \u003c=0.53-20200802"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-33480",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-18",
  "title": "GOCR\u91ca\u653e\u540e\u91cd\u7528\u6f0f\u6d1e"
}

CVE-2021-33480 (GCVE-0-2021-33480)

Vulnerability from cvelistv5 – Published: 2021-11-17 00:00 – Updated: 2024-08-03 23:50

Summary

An use-after-free vulnerability was discovered in gocr through 0.53-20200802 in context_correction() in pgm2asc.c.

Severity

No CVSS data available.

CWE

CWE-416

Assigner

fedora redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1962854
https://sourceforge.net/p/jocr/bugs/40/
https://sourceforge.net/p/jocr/bugs/41/
https://security.gentoo.org/glsa/202401-28	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
n/a	gocr	Affected: gocr 0.53-20200802

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:50:42.964Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
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          },
          {
            "tags": [
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            ],
            "url": "https://sourceforge.net/p/jocr/bugs/40/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://sourceforge.net/p/jocr/bugs/41/"
          },
          {
            "name": "GLSA-202401-28",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202401-28"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        {
          "product": "gocr",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "gocr 0.53-20200802"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An use-after-free vulnerability was discovered in gocr through 0.53-20200802 in context_correction() in pgm2asc.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-24T05:06:46.403Z",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
      "references": [
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1962854"
        },
        {
          "url": "https://sourceforge.net/p/jocr/bugs/40/"
        },
        {
          "url": "https://sourceforge.net/p/jocr/bugs/41/"
        },
        {
          "name": "GLSA-202401-28",
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          "url": "https://security.gentoo.org/glsa/202401-28"
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    "datePublished": "2021-11-17T00:00:00.000Z",
    "dateReserved": "2021-05-20T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:50:42.964Z",
    "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.