CVE-2021-40985

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Source
https://cve.org/CVERecord?id=CVE-2021-40985
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-40985.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-40985
Downstream
Related
Published
2021-11-03T17:15:08.387Z
Modified
2026-07-09T08:10:24.339757Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
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 imageloadbmp.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "vendor_product": "debian:debian_linux",
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/michaelrsweet/htmldoc

Affected ranges

Type
GIT
Repo
https://github.com/michaelrsweet/htmldoc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
df5d3010151a506c5ca138548aac02b37fb421f9
Fixed
f12b9666e582a8e7b70f11b28e5ffc49ad625d43
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.9.12"
        }
    ],
    "cpe": "cpe:2.3:a:htmldoc_project:htmldoc:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.8.30
v1.9
v1.9.1
v1.9.10
v1.9.11
v1.9.12
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v1.9.8
v1.9.9

Database specific

vanir_signatures_modified 
"2026-07-09T08:10:24Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "target": {
            "file": "htmldoc/image.cxx",
            "function": "image_load_bmp"
        },
        "digest": {
            "function_hash": "235288188373485764838552579787458681969",
            "length": 4196.0
        },
        "signature_version": "v1",
        "id": "CVE-2021-40985-5711492f",
        "source": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43",
        "deprecated": false
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "htmldoc/image.cxx"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "257141514835789531580371397587660108400",
                "283175293527098262048020954610039308665",
                "183847361107666746679610264155092227619",
                "70669642789662802104105858184899219014",
                "168806463103019594349885454995563723793",
                "78063532877380292851353647147807482642",
                "23937941108991224855156320071632840118",
                "79038696367307572280894279184605094182",
                "252027508351634483800230415675881158328",
                "111665357732966115136306573663186122285",
                "269559370259603800226433636181528946091"
            ]
        },
        "signature_version": "v1",
        "id": "CVE-2021-40985-cf967adb",
        "source": "https://github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43",
        "deprecated": false
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-40985.json"