Vulnerability-Lookup

CVE-2021-40985 (GCVE-0-2021-40985)

Vulnerability from cvelistv5 – Published: 2021-11-03 16:08 – Updated: 2024-08-04 02:59

Summary

A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2322 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/michaelrsweet/htmldoc/commit/f…	x_refsource_MISC
https://github.com/michaelrsweet/htmldoc/issues/444	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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CNVD-2021-102421

Vulnerability from cnvd - Published: 2021-12-24

Title

Michael R Sweet HTMLDOC缓冲区溢出漏洞

Description

HTMLDOC是一个HTML文件格式转换编辑器，可读取HTML和Markdown源文件或网页，并生成带有可选目录的相应EPUB、HTML、PostScript或PDF文件。 HTMLDOC 1.9.12之前版本中的image_load_bmp存在缓冲区溢出漏洞。攻击者可通过特制BMP图像利用该漏洞导致拒绝服务。

Severity

中

Patch Name

Michael R Sweet HTMLDOC缓冲区溢出漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-40985

Impacted products

Name
Michael R Sweet HTMLDOC <1.9.12

Show details on source website

JSON

To clipboard

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  "number": "CNVD-2021-102421",
  "openTime": "2021-12-24",
  "patchDescription": "HTMLDOC\u662f\u4e00\u4e2aHTML\u6587\u4ef6\u683c\u5f0f\u8f6c\u6362\u7f16\u8f91\u5668\uff0c\u53ef\u8bfb\u53d6HTML\u548cMarkdown\u6e90\u6587\u4ef6\u6216\u7f51\u9875\uff0c\u5e76\u751f\u6210\u5e26\u6709\u53ef\u9009\u76ee\u5f55\u7684\u76f8\u5e94EPUB\u3001HTML\u3001PostScript\u6216PDF\u6587\u4ef6\u3002\r\n\r\nHTMLDOC 1.9.12\u4e4b\u524d\u7248\u672c\u4e2d\u7684image_load_bmp\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236BMP\u56fe\u50cf\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "Michael R Sweet HTMLDOC\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Michael R Sweet HTMLDOC \u003c1.9.12"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-40985",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-04",
  "title": "Michael R Sweet HTMLDOC\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

FKIE_CVE-2021-40985

Vulnerability from fkie_nvd - Published: 2021-11-03 17:15 - Updated: 2026-06-17 04:07

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

References

URL	Tags
cve@mitre.org	https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43	Patch, Third Party Advisory
cve@mitre.org	https://github.com/michaelrsweet/htmldoc/issues/444	Exploit, Issue Tracking, Patch, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/michaelrsweet/htmldoc/issues/444	Exploit, Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html	Mailing List, Third Party Advisory

Impacted products

	Vendor	Product	Version
	htmldoc_project	htmldoc	*
	debian	debian_linux	9.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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              "versionEndExcluding": "1.9.12",
              "vulnerable": true
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            }
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  ],
  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento del b\u00fafer under-read en htmldoc versiones anteriores a 1.9.12, permite a atacantes causar una denegaci\u00f3n de servicio por medio de una imagen BMP dise\u00f1ada a la funci\u00f3n image_load_bmp."
    }
  ],
  "id": "CVE-2021-40985",
  "lastModified": "2026-06-17T04:07:42.263",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-11-03T17:15:08.387",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43"
    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-VFX2-GPVV-RWCM

Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-05-24 19:19

Details

Buffer overflow vulnerability in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-40985"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-03T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Buffer overflow vulnerability in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.",
  "id": "GHSA-vfx2-gpvv-rwcm",
  "modified": "2022-05-24T19:19:33Z",
  "published": "2022-05-24T19:19:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40985"
    },
    {
      "type": "WEB",
      "url": "https://github.com/michaelrsweet/htmldoc/issues/444"
    },
    {
      "type": "WEB",
      "url": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00022.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2021-40985

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

Aliases

CVE-2021-40985

Aliases

CVE-2021-40985

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-40985",
    "description": "Buffer overflow vulnerability in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.",
    "id": "GSD-2021-40985",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-40985.html",
      "https://advisories.mageia.org/CVE-2021-40985.html",
      "https://security.archlinux.org/CVE-2021-40985"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-40985"
      ],
      "details": "A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.",
      "id": "GSD-2021-40985",
      "modified": "2023-12-13T01:23:25.342634Z",
      "schema_version": "1.4.0"
    }
  },
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                  {
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            "version": "2.0"
          },
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          "impactScore": 2.9,
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            "integrityImpact": "NONE",
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            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-04-01T15:18Z",
      "publishedDate": "2021-11-03T17:15Z"
    }
  }
}

OPENSUSE-SU-2024:11611-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2026-09-20 20:22

Summary

htmldoc-1.9.12-2.1 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2021-40985.

CVE-2021-40985

3.3 (Low)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 4 products

Open the full advisory

SUSE-SU-2021:14869-1

Vulnerability from csaf_suse - Published: 2021-12-23 08:55 - Updated: 2026-09-20 13:55

Summary

Security update for htmldoc

Severity

Low

Scope

1 vulnerability in this advisory, including CVE-2021-40985.

CVE-2021-40985

3.3 (Low)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 3 products

Open the full advisory

UBUNTU-CVE-2021-40985 (CVE-2021-40985)

Vulnerability from osv_ubuntu – Published: 2021-11-03 17:15 – Updated: 2025-09-08 16:47 – Source website

Details

A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

Severity

5.5 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-40985	REPORT
	https://github.com/michaelrsweet/htmldoc/issues/444	REPORT
	https://github.com/michaelrsweet/htmldoc/commit/f…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-40985	REPORT
	https://ubuntu.com/security/notices/USN-7189-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "htmldoc",
            "binary_version": "1.8.27-8ubuntu1+esm3"
          },
          {
            "binary_name": "htmldoc-common",
            "binary_version": "1.8.27-8ubuntu1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "htmldoc",
        "purl": "pkg:deb/ubuntu/htmldoc@1.8.27-8ubuntu1+esm3?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
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            {
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            },
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            }
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        }
      ],
      "versions": [
        "1.8.27-8ubuntu1",
        "1.8.27-8ubuntu1+esm1",
        "1.8.27-8ubuntu1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "htmldoc",
            "binary_version": "1.8.27-8ubuntu1.1+esm2"
          },
          {
            "binary_name": "htmldoc-common",
            "binary_version": "1.8.27-8ubuntu1.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "htmldoc",
        "purl": "pkg:deb/ubuntu/htmldoc@1.8.27-8ubuntu1.1+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
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            {
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            },
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            }
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          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.27-8ubuntu1",
        "1.8.27-8ubuntu1.1",
        "1.8.27-8ubuntu1.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "htmldoc",
            "binary_version": "1.9.2-1ubuntu0.2+esm1"
          },
          {
            "binary_name": "htmldoc-common",
            "binary_version": "1.9.2-1ubuntu0.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "htmldoc",
        "purl": "pkg:deb/ubuntu/htmldoc@1.9.2-1ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.2-1ubuntu0.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.27-8ubuntu2",
        "1.8.27-8ubuntu3",
        "1.9.2-1",
        "1.9.2-1ubuntu0.1",
        "1.9.2-1ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "htmldoc",
            "binary_version": "1.9.7-1ubuntu0.3+esm1"
          },
          {
            "binary_name": "htmldoc-common",
            "binary_version": "1.9.7-1ubuntu0.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "htmldoc",
        "purl": "pkg:deb/ubuntu/htmldoc@1.9.7-1ubuntu0.3+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.7-1ubuntu0.3+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.3-1",
        "1.9.7-1",
        "1.9.7-1build1",
        "1.9.7-1ubuntu0.2",
        "1.9.7-1ubuntu0.3"
      ]
    }
  ],
  "aliases": [],
  "details": "A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.",
  "id": "UBUNTU-CVE-2021-40985",
  "modified": "2025-09-08T16:47:22Z",
  "published": "2021-11-03T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-40985"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/michaelrsweet/htmldoc/issues/444"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-40985"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7189-1"
    }
  ],
  "related": [
    "USN-7189-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-40985"
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

Action not permitted

CVE-2021-40985 (GCVE-0-2021-40985)

CNVD-2021-102421

FKIE_CVE-2021-40985

GHSA-VFX2-GPVV-RWCM

GSD-2021-40985

OPENSUSE-SU-2024:11611-1

SUSE-SU-2021:14869-1

UBUNTU-CVE-2021-40985 (CVE-2021-40985)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour