CVE-2020-35965

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Source
https://cve.org/CVERecord?id=CVE-2020-35965
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35965.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-35965
Downstream
Related
Published
2021-01-04T02:15:11.273Z
Modified
2026-07-08T20:42:50.369466Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux"
        }
    ]
}
References

Affected packages

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
6b6b9e593dd4d3aaf75f48d40a13ef03bdef9fdb
Fixed
c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.3.1"
        },
        {
            "fixed": "4.4"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35965.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
6b6b9e593dd4d3aaf75f48d40a13ef03bdef9fdb
Fixed
c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8
Fixed
3e5959b3457f7f1856d997261e6ac672bba49e8b
Fixed
b0a8b40294ea212c1938348ff112ef1b9bf16bb3
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.3.1"
        },
        {
            "fixed": "4.4"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Database specific

vanir_signatures_modified 
"2026-07-08T20:42:50Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 3875.0,
            "function_hash": "335900245080905195518199500105634341627"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3",
        "id": "CVE-2020-35965-46b6d8a5",
        "target": {
            "function": "decode_frame",
            "file": "libavcodec/exr.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "314669553627519175455910785186614959061",
                "1607368138201453610048915646059563107",
                "244482794177306786665733148081237557086",
                "214458255490862211237265395190480335490",
                "263897946523995697652292010420148165934",
                "19272380277864278366063073187641011363",
                "219757913322254528710254513951421514529",
                "170780553531284558693191737341113297",
                "37814278519587150644049758241271325829",
                "46704310771709105788335437876713644209"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3",
        "id": "CVE-2020-35965-9adf2974",
        "target": {
            "file": "libavcodec/exr.c"
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 3851.0,
            "function_hash": "124937820520588315441984477221866751122"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b",
        "id": "CVE-2020-35965-e8160555",
        "target": {
            "function": "decode_frame",
            "file": "libavcodec/exr.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "11453760296080827596215104085033325511",
                "338685430887148091291965859791680091872",
                "172064141470120326502547602228483699307",
                "68840693532925938066564762591449107621"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b",
        "id": "CVE-2020-35965-fdcf59d3",
        "target": {
            "file": "libavcodec/exr.c"
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35965.json"