CVE-2021-36692

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Source
https://cve.org/CVERecord?id=CVE-2021-36692
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36692.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-36692
Published
2021-08-30T21:15:09.413Z
Modified
2026-08-07T17:27:44.174600Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

libjxl v0.3.7 is affected by a Divide By Zero in issue in lib/extras/codec_apng.cc jxl::DecodeImageAPNG(). When encoding a malicous APNG file using cjxl, an attacker can trigger a denial of service.

References

Affected packages

Git / github.com/libjxl/libjxl

Affected ranges

Type
GIT
Repo
https://github.com/libjxl/libjxl
Events
Introduced
9e9bce86164dc4d01c39eeeb3404d6aed85137b2
Last affected
9e9bce86164dc4d01c39eeeb3404d6aed85137b2
Fixed
7dfa400ded53919d986c5d3d23446a09e0cf481b
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.3.7"
        },
        {
            "last_affected": "0.3.7"
        }
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:libjxl_project:libjxl:0.3.7:*:*:*:*:*:*:*"
}

Affected versions

0.*
0.3.7
v0.*
v0.3.7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36692.json"
vanir_signatures 
[
    {
        "target": {
            "file": "lib/extras/codec_apng.cc"
        },
        "deprecated": false,
        "source": "https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b",
        "id": "CVE-2021-36692-13120598",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "218996673675454636206971500351580687935",
                "289713015421704113962406939315262015326",
                "151492106284367248620221020173088946544"
            ]
        },
        "signature_type": "Line"
    },
    {
        "target": {
            "function": "DecodeImageAPNG",
            "file": "lib/extras/codec_apng.cc"
        },
        "deprecated": false,
        "source": "https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b",
        "id": "CVE-2021-36692-77f02abb",
        "signature_version": "v1",
        "digest": {
            "length": 5308.0,
            "function_hash": "83732117007404789023064002931192555137"
        },
        "signature_type": "Function"
    }
]
vanir_signatures_modified 
"2026-08-07T17:27:44Z"