CVE-2021-3962

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Source
https://cve.org/CVERecord?id=CVE-2021-3962
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3962.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-3962
Published
2021-11-19T17:15:08Z
Modified
2026-08-07T19:46:51Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in ImageMagick where it did not properly sanitize certain input before using it to invoke convert processes. This flaw allows an attacker to create a specially crafted image that leads to a use-after-free vulnerability when processed by ImageMagick. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

References

Affected packages

Git / github.com/imagemagick/imagemagick

Affected ranges

Type
GIT
Repo
https://github.com/imagemagick/imagemagick
Events
Introduced
e4182c967a9434f180cbb748b24ed437c287381b
Last Affected
e4182c967a9434f180cbb748b24ed437c287381b
Fixed
82775af03bbb10a0a1d0e15c0156c75673b4525e
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:imagemagick:imagemagick:7.1.0-14:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "7.1.0-14"
        },
        {
            "last_affected": "7.1.0-14"
        }
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

7.*
7.1.0-14

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3962.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "168201234120825407045811356471052558232",
            "length": 28099
        },
        "id": "CVE-2021-3962-4c4a4a80",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/imagemagick/imagemagick/commit/82775af03bbb10a0a1d0e15c0156c75673b4525e",
        "target": {
            "file": "coders/dcm.c",
            "function": "ReadDCMImage"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "96365956146326091874962122126684256162",
                "32941904576902578390634455902709202179",
                "175020562535202099546215091863215473795",
                "204637689310248593106512844224599847026",
                "31196623183621358262108349599421664569",
                "199031081146211321297465123523238945430",
                "195907706849790379440031066911105007962"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2021-3962-d545a7c7",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/imagemagick/imagemagick/commit/82775af03bbb10a0a1d0e15c0156c75673b4525e",
        "target": {
            "file": "coders/dcm.c"
        }
    }
]
vanir_signatures_modified 
"2026-08-07T19:46:51Z"