CVE-2018-13303

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Source
https://cve.org/CVERecord?id=CVE-2018-13303
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-13303.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-13303
Downstream
Published
2018-07-05T17:29:00.500Z
Modified
2026-07-08T17:57:35.169962Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In FFmpeg 4.0.1, a missing check for failure of a call to initgetbits8() in the avprivac3parseheader function in libavcodec/ac3parser.c may trigger a NULL pointer dereference while converting a crafted AVI file to MPEG4, leading to a denial of service.

References

Affected packages

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
e049f7c24fc6aa5fc925f860e2ad940a75cfd84f
Last affected
e049f7c24fc6aa5fc925f860e2ad940a75cfd84f
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.0.1:*:*:*:*:*:*:*",
    "source": "CPE_STRING",
    "extracted_events": [
        {
            "introduced": "4.0.1"
        },
        {
            "last_affected": "4.0.1"
        }
    ]
}

Affected versions

4.*
4.0.1
n4.*
n4.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-13303.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
e049f7c24fc6aa5fc925f860e2ad940a75cfd84f
Last affected
e049f7c24fc6aa5fc925f860e2ad940a75cfd84f
Fixed
00e8181bd97c834fe60751b0c511d4bb97875f78
Database specific 
{
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.0.1:*:*:*:*:*:*:*",
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "4.0.1"
        },
        {
            "last_affected": "4.0.1"
        }
    ]
}

Affected versions

4.*
4.0.1
n4.*
n4.0.1

Database specific

vanir_signatures 
[
    {
        "digest": {
            "length": 375.0,
            "function_hash": "142391142906413682480041211024204642092"
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/00e8181bd97c834fe60751b0c511d4bb97875f78",
        "signature_type": "Function",
        "target": {
            "function": "avpriv_ac3_parse_header",
            "file": "libavcodec/ac3_parser.c"
        },
        "id": "CVE-2018-13303-44c73212",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "212924937453151307161016188838557761501",
                "43197743373531770406142050929992758697",
                "336388221455771699703553060708214641660",
                "184902950246473843971472263661582995389"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/00e8181bd97c834fe60751b0c511d4bb97875f78",
        "signature_type": "Line",
        "target": {
            "file": "libavcodec/ac3_parser.c"
        },
        "id": "CVE-2018-13303-a1c2a195",
        "deprecated": false
    }
]
vanir_signatures_modified 
"2026-07-08T17:57:35Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-13303.json"