CVE-2020-35964

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Source
https://cve.org/CVERecord?id=CVE-2020-35964
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35964.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-35964
Downstream
CLEANSTART (3)
DEBIAN (1)
JLSEC (1)
OESA (1)
openSUSE (1)
UBUNTU (1)
Related
Published
2021-01-03T19:15:11Z
Modified
2026-04-11T13:53:11Z
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

track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write because of incorrect extradata packing.

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
Last Affected
6b6b9e593dd4d3aaf75f48d40a13ef03bdef9fdb
Fixed
27a99e2c7d450fef15594671eef4465c8a166bd7
Database specific
Show details 
{
    "versions":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "4.3.1"
        }
    ]
}

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
n4.3-dev
n4.3.1
n4.4-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35964.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "10276585309990227696075281458891561069",
            "length":  3384
        },
        "id":  "CVE-2020-35964-0f156ff9",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/ffmpeg/ffmpeg/commit/27a99e2c7d450fef15594671eef4465c8a166bd7",
        "target":  {
            "file":  "libavformat/vividas.c",
            "function":  "track_header"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
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            ],
            "threshold":  0.9
        },
        "id":  "CVE-2020-35964-ee6b3729",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/ffmpeg/ffmpeg/commit/27a99e2c7d450fef15594671eef4465c8a166bd7",
        "target":  {
            "file":  "libavformat/vividas.c"
        }
    }
]
vanir_signatures_modified 
"2026-04-11T13:53:11Z"