osv-2021-972
Vulnerability from osv_ossfuzz
Published
2021-07-13 00:00
Modified
2026-09-10 14:11
Summary
UNKNOWN READ in void mc_chroma<unsigned short>
Details
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36056
Crash type: UNKNOWN READ
Crash state:
void mc_chroma<unsigned short>
generate_inter_prediction_samples
decode_prediction_unit
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"severity": "MEDIUM"
},
"package": {
"ecosystem": "OSS-Fuzz",
"name": "kimageformats"
},
"ranges": [
{
"events": [
{
"introduced": "ca52d4ddf540cc731d0f31dbccc1897f7e6d9db4"
}
],
"repo": "https://invent.kde.org/frameworks/kimageformats.git",
"type": "GIT"
}
],
"versions": [
"v5.80.0",
"v5.80.0-rc1",
"v5.81.0",
"v5.81.0-rc1",
"v5.81.0-rc2",
"v5.82.0-rc1",
"v5.83.0",
"v5.83.0-rc1",
"v5.84.0-rc1",
"v5.85.0",
"v5.85.0-rc1",
"v5.86.0",
"v5.86.0-rc1",
"v5.87.0",
"v5.87.0-rc1",
"v5.88.0-rc1",
"v5.88.0",
"v5.89.0-rc1",
"v5.89.0",
"v5.90.0-rc1",
"v5.90.0",
"v5.91.0-rc1",
"v5.91.0",
"v5.92.0-rc1",
"v5.92.0",
"v5.93.0-rc1",
"v5.93.0",
"v5.94.0-rc1",
"v5.94.0",
"v5.95.0-rc1",
"v5.95.0",
"v5.96.0-rc1",
"v5.96.0",
"v5.97.0-rc1",
"v5.97.0",
"v5.98.0-rc1",
"v5.98.0",
"v5.99.0-rc1",
"v5.99.0",
"v5.100.0-rc1",
"v5.101.0-rc1",
"v5.101.0",
"v5.102.0-rc1",
"v5.102.0",
"v5.103.0-rc1",
"v5.103.0",
"v5.104.0-rc1",
"v5.104.0",
"v5.105.0-rc1",
"v5.105.0",
"v5.106.0-rc1",
"v5.106.0",
"v5.107.0-rc1",
"v5.107.0",
"v5.108.0-rc1",
"v5.108.0",
"v5.109.0-rc1",
"v5.109.0",
"v5.110.0-rc1",
"v5.110.0",
"v5.111.0-rc1",
"v5.111.0",
"v5.112.0-rc1",
"v5.245.0",
"v5.112.0",
"v5.246.0",
"v5.113.0-rc1",
"v5.113.0",
"v5.247.0",
"v5.114.0-rc1",
"v5.248.0",
"v5.114.0",
"v5.249.0",
"v5.115.0-rc1",
"v5.115.0",
"v6.0.0",
"v6.1.0",
"v5.116.0-rc1",
"v6.2.0",
"v5.116.0",
"v6.3.0-rc1",
"v6.3.0",
"v6.4.0-rc1",
"v6.4.0",
"v6.5.0-rc1",
"v6.5.0",
"v6.6.0-rc1",
"v6.6.0",
"v6.7.0-rc1",
"v6.7.0",
"v6.8.0-rc1",
"v6.8.0",
"v6.9.0-rc1",
"v6.9.0",
"v6.10.0-rc1",
"v6.10.0",
"v6.11.0-rc1",
"v6.11.0",
"v6.12.0-rc1",
"v6.12.0-rc2",
"v6.12.0",
"v6.13.0-rc1",
"v6.13.0",
"v6.14.0-rc1",
"v6.14.0",
"v6.15.0-rc1",
"v6.15.0",
"v6.16.0-rc1",
"v6.16.0",
"v6.17.0",
"v6.17.0-rc1",
"v6.18.0",
"v6.18.0-rc1",
"v6.19.0-rc1",
"v6.19.0",
"v6.20.0-rc1",
"v6.20.0",
"v6.21.0-rc1",
"v6.21.0",
"v6.22.0-rc1",
"v6.22.0",
"v6.23.0-rc1",
"v6.23.0",
"v6.24.0-rc1",
"v6.24.0",
"v6.25.0-rc1",
"v6.25.0",
"v6.26.0-rc1",
"v6.26.0",
"v6.27.0-rc1",
"v6.27.0",
"v6.28.0-rc1",
"v6.28.0",
"v6.28.1",
"v6.29.0-rc1",
"v6.29.0",
"v6.30.0-rc1",
"v6.30.0"
]
}
],
"details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36056\n\n```\nCrash type: UNKNOWN READ\nCrash state:\nvoid mc_chroma\u003cunsigned short\u003e\ngenerate_inter_prediction_samples\ndecode_prediction_unit\n```\n",
"id": "OSV-2021-972",
"modified": "2026-09-10T14:11:35.694468Z",
"published": "2021-07-13T00:00:16.631711Z",
"references": [
{
"type": "REPORT",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36056"
}
],
"summary": "UNKNOWN READ in void mc_chroma\u003cunsigned short\u003e"
}
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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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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.
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.
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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.
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