CVE-2020-12284

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Source
https://cve.org/CVERecord?id=CVE-2020-12284
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12284.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-12284
Downstream
Published
2020-04-28T06:15:10.777Z
Modified
2026-07-08T20:58:09.969385Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

cbsjpegsplitfragment in libavcodec/cbsjpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEGMARKERSOS handling because of a missing length check.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "16.04"
                },
                {
                    "last_affected": "16.04"
                },
                {
                    "introduced": "18.04"
                },
                {
                    "last_affected": "18.04"
                },
                {
                    "introduced": "20.04"
                },
                {
                    "last_affected": "20.04"
                }
            ],
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "canonical:ubuntu_linux"
        },
        {
            "extracted_events": [
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "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
3c1ecb057d7621e57968624aa15ad3e9efc819f7
Last affected
192d1d34eb3668fa27f433e96036340e1e5077a0
Database specific 
{
    "cpe": [
        "cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*",
        "cpe:2.3:a:ffmpeg:ffmpeg:4.2.2:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "4.1"
        },
        {
            "last_affected": "4.1"
        },
        {
            "introduced": "4.2.2"
        },
        {
            "last_affected": "4.2.2"
        }
    ],
    "source": "CPE_STRING"
}

Affected versions

4.*
4.1
4.2.2
n4.*
n4.1-dev
n4.2
n4.2-dev
n4.2.1
n4.2.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12284.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
3c1ecb057d7621e57968624aa15ad3e9efc819f7
Last affected
192d1d34eb3668fa27f433e96036340e1e5077a0
Fixed
1812352d767ccf5431aa440123e2e260a4db2726
Fixed
a3a3730b5456ca00587455004d40c047f7b20a99
Database specific 
{
    "cpe": [
        "cpe:2.3:a:ffmpeg:ffmpeg:4.1:*:*:*:*:*:*:*",
        "cpe:2.3:a:ffmpeg:ffmpeg:4.2.2:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "4.1"
        },
        {
            "last_affected": "4.1"
        },
        {
            "introduced": "4.2.2"
        },
        {
            "last_affected": "4.2.2"
        }
    ],
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ]
}

Affected versions

4.*
4.1
4.2.2
n4.*
n4.1
n4.1-dev
n4.1.1
n4.1.2
n4.1.3
n4.1.4
n4.1.5
n4.2
n4.2-dev
n4.2.1
n4.2.2
n4.3-dev

Database specific

vanir_signatures_modified 
"2026-07-08T20:58:09Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 3246.0,
            "function_hash": "295269910854795076654787475383993439121"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
        "id": "CVE-2020-12284-05b42b91",
        "target": {
            "function": "cbs_jpeg_split_fragment",
            "file": "libavcodec/cbs_jpeg.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "95195660024913394212304132289173808057",
                "312525091208015857353260134168748076611",
                "298190530965200286121570828407286037464"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726",
        "id": "CVE-2020-12284-4194c84e",
        "target": {
            "file": "libavcodec/cbs_jpeg.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "95195660024913394212304132289173808057",
                "312525091208015857353260134168748076611",
                "298190530965200286121570828407286037464"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99",
        "id": "CVE-2020-12284-8f9639c6",
        "target": {
            "file": "libavcodec/cbs_jpeg.c"
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 3284.0,
            "function_hash": "95840289875798690280122319277904648598"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99",
        "id": "CVE-2020-12284-e760d172",
        "target": {
            "function": "cbs_jpeg_split_fragment",
            "file": "libavcodec/cbs_jpeg.c"
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12284.json"