CVE-2018-7557

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Source
https://cve.org/CVERecord?id=CVE-2018-7557
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7557.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-7557
Downstream
Published
2018-02-28T07:29:00.463Z
Modified
2026-07-08T16:41:18.069696Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.0"
                },
                {
                    "last_affected": "8.0"
                },
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ],
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "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
58142a27ea96bf9246586a91a82db85e37646933
Last affected
6a97ba521558ce131fe839eed2d51ff745280e1d
Fixed
7414d0bda7763f9bd69c26c068e482ab297c1c96
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.8"
        },
        {
            "last_affected": "3.4.2"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

n2.*
n2.8-dev
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4
n3.4-dev
n3.4.1
n3.4.2
n3.5-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7557.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
58142a27ea96bf9246586a91a82db85e37646933
Last affected
6a97ba521558ce131fe839eed2d51ff745280e1d
Fixed
e724bd1dd9efea3abb8586d6644ec07694afceae
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.8"
        },
        {
            "last_affected": "3.4.2"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

n2.*
n2.8
n2.8-dev
n2.8.1
n2.8.10
n2.8.11
n2.8.12
n2.8.13
n2.8.14
n2.8.2
n2.8.3
n2.8.4
n2.8.5
n2.8.6
n2.8.7
n2.8.8
n2.8.9
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4
n3.4-dev
n3.4.1
n3.4.2

Database specific

vanir_signatures_modified 
"2026-07-08T16:41:18Z"
vanir_signatures 
[
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 2014.0,
            "function_hash": "261170408201920726981716170408581999831"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/e724bd1dd9efea3abb8586d6644ec07694afceae",
        "id": "CVE-2018-7557-c58f81bb",
        "target": {
            "function": "decode_init",
            "file": "libavcodec/utvideodec.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "214294340827385027346326899809308912278",
                "319967151764465081227513198959321650619",
                "160860407430123656188533758835378100984",
                "88426036291747426103396839917112951526",
                "322060800242239300558022628811003160243",
                "294584906807958280719769276673771155382",
                "173453050150287002342984267387285969060",
                "28682244462948592149093618534071984159",
                "105041463035589690360197019114153569694",
                "112286002592890528022285994238400706647"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/e724bd1dd9efea3abb8586d6644ec07694afceae",
        "id": "CVE-2018-7557-e1a439bc",
        "target": {
            "file": "libavcodec/utvideodec.c"
        }
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7557.json"