Vulnerability-Lookup

CNVD-2021-16919

Vulnerability from cnvd - Published: 2021-03-12

Title

ytnef双重释放漏洞

Description

ytnef是一款协同procmail以解码TNEF流的程序。 ytnef 1.9.3中的lib/ytnef.c中的TNEFSubjectHandler函数存在双重释放漏洞。远程攻击者可通过特制文件利用该漏洞导致拒绝服务并可能实现代码执行。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://bugzilla.redhat.com/show_bug.cgi?id=1926967

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-3403

Impacted products

Name
ytnef ytnef 1.9.3

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3403",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-3403"
    }
  },
  "description": "ytnef\u662f\u4e00\u6b3e\u534f\u540cprocmail\u4ee5\u89e3\u7801TNEF\u6d41\u7684\u7a0b\u5e8f\u3002\n\nytnef 1.9.3\u4e2d\u7684lib/ytnef.c\u4e2d\u7684TNEFSubjectHandler\u51fd\u6570\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u5e76\u53ef\u80fd\u5b9e\u73b0\u4ee3\u7801\u6267\u884c\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1926967",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-16919",
  "openTime": "2021-03-12",
  "products": {
    "product": "ytnef ytnef 1.9.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3403",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-05",
  "title": "ytnef\u53cc\u91cd\u91ca\u653e\u6f0f\u6d1e"
}

CVE-2021-3403 (GCVE-0-2021-3403)

Vulnerability from cvelistv5 – Published: 2021-03-04 21:10 – Updated: 2024-08-03 16:53

Summary

In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.

Severity

No CVSS data available.

CWE

CWE-416

Assigner

redhat redhat root

References

2 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1926967	x_refsource_MISC
https://github.com/Yeraze/ytnef/issues/85	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	ytnef	Affected: All versions

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:53:17.578Z",
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              "x_refsource_MISC",
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            "url": "https://github.com/Yeraze/ytnef/issues/85"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ytnef",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "All versions"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file."
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      "problemTypes": [
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-04T21:10:50.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1926967"
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          "url": "https://github.com/Yeraze/ytnef/issues/85"
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    "datePublished": "2021-03-04T21:10:50.000Z",
    "dateReserved": "2021-02-09T00:00:00.000Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
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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.