CVE-2021-38114

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Source
https://cve.org/CVERecord?id=CVE-2021-38114
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38114.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-38114
Downstream
Related
Published
2021-08-04T21:15:08.130Z
Modified
2026-08-04T15:35:23.959820Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                },
                {
                    "introduced": "11.0"
                },
                {
                    "last_affected": "11.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8
Last affected
c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8
Database specific 
{
    "source": "CPE_STRING",
    "extracted_events": [
        {
            "introduced": "4.4"
        },
        {
            "last_affected": "4.4"
        }
    ],
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*"
}

Affected versions

4.*
4.4
n4.*
n4.4-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38114.json"

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
7150f9575671f898382c370acae35f9087a30ba1
Database specific 
{
    "source": "REFERENCES"
}

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_modified 
"2026-08-04T15:35:23Z"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "target": {
            "file": "libavcodec/dnxhddec.c"
        },
        "id": "CVE-2021-38114-03aba8a8",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "253179105144349137520746074098712463876",
                "145076321672620917984433409448337254351",
                "236026111101620473214598826065390808009",
                "321900568368984338675703581623054690506",
                "302746797940366195773012496098975871608",
                "257257327734945784339426373977232735045",
                "201430951002728322015485363002249525568",
                "328809331225450928095144114306472607527",
                "327154039913106808541885552638390873074",
                "26246859042191440397808292099394009525",
                "270710497806514070783648687528585480579",
                "70076744926645453820194004361918333452",
                "330437388880503948789009325370605440428",
                "49728460261120265003470512311191320619",
                "12822181520812045822043639362351702346",
                "255199315402460324175227460520418813599",
                "264485814497753088874115754024079832340",
                "227326721084120214306427427113910730614",
                "306813188964179191502627350327975201921"
            ]
        },
        "source": "https://github.com/ffmpeg/ffmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "libavcodec/dnxhddec.c",
            "function": "dnxhd_init_vlc"
        },
        "id": "CVE-2021-38114-a3403b56",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "277203167962598597416599143335140589121",
            "length": 1136.0
        },
        "source": "https://github.com/ffmpeg/ffmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-38114.json"