Vulnerability-Lookup

CNVD-2021-94318

Vulnerability from cnvd - Published: 2021-12-03

Title

Libmobi缓冲区溢出漏洞

Description

Libmobi是一个C库。用于处理 Mobipocket/Kindle (MOBI) 电子书格式文档。 libmobi存在缓冲区溢出漏洞，攻击者可利用该漏洞读取超出缓冲区大小的内存信息。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21

Reference

https://huntr.dev/bounties/540fd115-7de4-4e19-a918-5ee61f5157c1

Impacted products

Name
Libmobi Libmobi

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3881"
    }
  },
  "description": "Libmobi\u662f\u4e00\u4e2aC\u5e93\u3002\u7528\u4e8e\u5904\u7406 Mobipocket/Kindle (MOBI) \u7535\u5b50\u4e66\u683c\u5f0f\u6587\u6863\u3002\n\nlibmobi\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u8d85\u51fa\u7f13\u51b2\u533a\u5927\u5c0f\u7684\u5185\u5b58\u4fe1\u606f\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://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94318",
  "openTime": "2021-12-03",
  "products": {
    "product": "Libmobi Libmobi"
  },
  "referenceLink": "https://huntr.dev/bounties/540fd115-7de4-4e19-a918-5ee61f5157c1",
  "serverity": "\u9ad8",
  "submitTime": "2021-10-19",
  "title": "Libmobi\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-3881 (GCVE-0-2021-3881)

Vulnerability from cvelistv5 – Published: 2021-10-15 13:40 – Updated: 2024-08-03 17:09

Title

Out-of-bounds Read in bfabiszewski/libmobi

Summary

libmobi is vulnerable to Out-of-bounds Read

Severity

7.1 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CWE

CWE-125 - Out-of-bounds Read

Assigner

@huntrdev CNA

CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details

References

2 references

URL	Tags
https://huntr.dev/bounties/540fd115-7de4-4e19-a91…	x_refsource_CONFIRM
https://github.com/bfabiszewski/libmobi/commit/be…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
bfabiszewski	bfabiszewski/libmobi	Affected: unspecified , ≤ 0.7 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.571Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://huntr.dev/bounties/540fd115-7de4-4e19-a918-5ee61f5157c1"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "bfabiszewski/libmobi",
          "vendor": "bfabiszewski",
          "versions": [
            {
              "lessThanOrEqual": "0.7",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libmobi is vulnerable to Out-of-bounds Read"
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      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-15T13:40:23.000Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntrdev"
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      "references": [
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          ],
          "url": "https://huntr.dev/bounties/540fd115-7de4-4e19-a918-5ee61f5157c1"
        },
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        }
      ],
      "source": {
        "advisory": "540fd115-7de4-4e19-a918-5ee61f5157c1",
        "discovery": "EXTERNAL"
      },
      "title": "Out-of-bounds Read in bfabiszewski/libmobi",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@huntr.dev",
          "ID": "CVE-2021-3881",
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        },
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            "vendor_data": [
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                      "version": {
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                          {
                            "version_affected": "\u003c=",
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                "vendor_name": "bfabiszewski"
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        "data_version": "4.0",
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        },
        "impact": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
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            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
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    "dateReserved": "2021-10-12T00:00:00.000Z",
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    "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.

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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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