PYSEC-2021-892
Vulnerability from pysec - Published: 2021-07-01 03:15 - Updated: 2026-07-13 05:48
VLAI
Details
libavif 0.8.0 and 0.8.1 has an out-of-bounds write in avifDecoderDataFillImageGrid.
Severity
8.8 (High)
Impacted products
| Name | purl | avif | pkg:pypi/avif |
|---|
Aliases
{
"affected": [
{
"ecosystem_specific": {},
"package": {
"ecosystem": "PyPI",
"name": "avif",
"purl": "pkg:pypi/avif"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.8.0"
},
{
"last_affected": "0.8.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.0",
"0.1.1",
"0.2.0",
"0.2.1",
"0.2.2",
"0.2.3",
"0.2.4",
"0.3.0",
"0.4.0",
"0.5.0"
]
}
],
"aliases": [
"CVE-2020-36407"
],
"details": "libavif 0.8.0 and 0.8.1 has an out-of-bounds write in avifDecoderDataFillImageGrid.",
"id": "PYSEC-2021-892",
"modified": "2026-07-13T05:48:02.192823Z",
"published": "2021-07-01T03:15:08.033Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libavif/OSV-2020-1597.yaml"
},
{
"type": "FIX",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24811"
},
{
"type": "FIX",
"url": "https://github.com/AOMediaCodec/libavif/commit/0a8e7244d494ae98e9756355dfbfb6697ded2ff9"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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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