CVE-2021-33815

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-33815
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-33815.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-33815
Downstream
Related
Published
2021-06-03T17:15:15.073Z
Modified
2025-11-14T12:00:44.496521Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

dwauncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dccount is not strictly checked.

References

Affected packages

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777

Affected versions

Other

N

n0.*

n0.11-dev
n0.12-dev
n0.8

n1.*

n1.1-dev
n1.2-dev
n1.3-dev

n2.*

n2.0
n2.1-dev
n2.2-dev
n2.3-dev
n2.4-dev
n2.5-dev
n2.6-dev
n2.7-dev
n2.8-dev
n2.9-dev

n3.*

n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev

n4.*

n4.1-dev
n4.2-dev
n4.3-dev
n4.4-dev
n4.5-dev

Database specific

vanir_signatures

[
    {
        "digest": {
            "line_hashes": [
                "196709895360287458591615415705214410396",
                "130380091940095792286365522484884190871",
                "283493446620991118859812463275249449165",
                "19386626409520732559976923280123000466",
                "88974277760846921266435675601066312401",
                "66708020939852844078050880899189869910",
                "215846995322117982697734546612735061643"
            ],
            "threshold": 0.9
        },
        "target": {
            "file": "libavcodec/exr.c"
        },
        "signature_type": "Line",
        "id": "CVE-2021-33815-92de094f",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777",
        "deprecated": false
    },
    {
        "digest": {
            "length": 5286.0,
            "function_hash": "285466867490307915643097296913297550466"
        },
        "target": {
            "file": "libavcodec/exr.c",
            "function": "dwa_uncompress"
        },
        "signature_type": "Function",
        "id": "CVE-2021-33815-d2c1e13a",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777",
        "deprecated": false
    }
]