CVE-2019-17539

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.

References

Affected packages

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

289a79d545e83a97f5cdd00b28ce70638dae53e8

Introduced

3c1ecb057d7621e57968624aa15ad3e9efc819f7

Fixed

4521700f295f35da4768f88b570e0836a858ce7b

Introduced

ace829cb45cff530b8a0aed6adf18f329d7a98f6

Fixed

26e1d0d015bb11ab0383729c52cfca4fd9cf4e79

Affected versions

n4.*

n4.0

n4.0.1

n4.0.2

n4.0.3

n4.0.4

n4.1

n4.1-dev

n4.1.1

n4.1.2

n4.1.3

n4.1.4

Database specific

vanir_signatures

[
    {
        "id": "CVE-2019-17539-89be5de9",
        "signature_version": "v1",
        "digest": {
            "function_hash": "319021067119698628255415066517927384702",
            "length": 3260.0
        },
        "deprecated": false,
        "source": "https://github.com/ffmpeg/ffmpeg/commit/4521700f295f35da4768f88b570e0836a858ce7b",
        "signature_type": "Function",
        "target": {
            "file": "libavformat/hlsenc.c",
            "function": "hls_write_trailer"
        }
    },
    {
        "id": "CVE-2019-17539-def83151",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "111757355275855299767214097555503833425",
                "332776709410158749058424084520384076278",
                "126244308190247979754930455471757737376",
                "94499542832375321740817633492542024465",
                "130172128018366235132297832589555939800",
                "55536100370799741404976270153852322799",
                "178437194551693198799431818210633522790",
                "212929257175167450126831190360563960264",
                "62370169604886578115909868256949237475",
                "129049294233240527051413687895358407876",
                "286287738882113096420417966736547438098",
                "243635147339143298832966112516759698288",
                "272776886790752221810033028800273149150",
                "9747124137513848496923527654951202606",
                "301927968725738236165575381671008622991",
                "192183203489963350993466951267713113650",
                "122011600157872378775713225314617790943",
                "25213801080174912976460312183375057971",
                "74233774275043259138930394312098586340",
                "241426111203459057517320451984683680334",
                "255987871053178237141709543074309270079",
                "273577814075419466154781616910945826301"
            ]
        },
        "deprecated": false,
        "source": "https://github.com/ffmpeg/ffmpeg/commit/4521700f295f35da4768f88b570e0836a858ce7b",
        "signature_type": "Line",
        "target": {
            "file": "libavformat/hlsenc.c"
        }
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17539.json"