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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-38093

Integer Overflow vulnerability in function filter_robert in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-38093
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 09:19 UTC · Revision 1

Source evidence

CVE-2021-38093

core-osv · Original source

Published 20 Sept 2021, 16:15 UTC

Integer Overflow vulnerability in function filter_robert in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.

osv:CVE-2021-38093
Complete source record
{
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  "url": "https://osv.dev/vulnerability/CVE-2021-38093",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-38093",
    "summary": "Integer Overflow vulnerability in function filter_robert in libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts.",
    "evidence": "osv:CVE-2021-38093",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-38093",
      "aliases": [
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
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                    "source": "REFERENCES_COMMIT"
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              }
            }
          ],
          "versions": [
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            "n4.2.1"
          ],
          "database_specific": {
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      "modified": "2026-10-24T14:12:10.734279008Z",
      "provider": "osv",
      "references": [
        "https://trac.ffmpeg.org/ticket/8263",
        "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/99f8d32129dd233d4eb2efa44678a0bc44869f23"
      ],
      "provider_metadata": {}
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 443350,
  "published_at": "2021-09-20T16:15:11.41+00:00"
}