Vulnerability-Lookup

CVE-2019-9718 (GCVE-0-2019-9718)

Vulnerability from cvelistv5 – Published: 2019-03-12 06:00 – Updated: 2024-08-04 22:01

Summary

In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2358 records in the last 180 days details

References

6 references

URL	Tags
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1…	x_refsource_MISC
http://www.securityfocus.com/bid/107382	vdb-entryx_refsource_BID
https://usn.ubuntu.com/3967-1/	vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2019/May/60	mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4449	vendor-advisoryx_refsource_DEBIAN
https://github.com/FFmpeg/FFmpeg/commit/23ccf3cab…	x_refsource_MISC

Date Public

2019-03-12 00:00

Show details on NVD website

JSON

To clipboard

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        "lastModified": "2024-11-21T04:52:10.140",
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      "product_status:known_not_affected": "1",
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}

SUSE-SU-2019:3184-2

Vulnerability from csaf_suse - Published: 2020-07-07 11:43 - Updated: 2026-09-20 13:22

Summary

Security update for ffmpeg

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2019-9718.

CVE-2019-9718

4.3 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 12 products

Open the full advisory

UBUNTU-CVE-2019-9718 (CVE-2019-9718)

Vulnerability from osv_ubuntu – Published: 2019-03-12 00:00 – Updated: 2026-04-22 07:38 – Source website

Details

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

6.5 (Medium)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-9718	REPORT
	https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1…	REPORT
	https://ubuntu.com/security/notices/USN-3967-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-9718	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ffmpeg",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
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            "binary_name": "libavcodec-extra",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavcodec-extra57",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavcodec57",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavdevice57",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavfilter-extra6",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavfilter6",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavformat57",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libavresample3",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
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            "binary_name": "libavutil55",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
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            "binary_name": "libpostproc54",
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          },
          {
            "binary_name": "libswresample2",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libswscale4",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
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      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
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      },
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          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
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        "7:3.3.4-2build3",
        "7:3.4-2ubuntu2",
        "7:3.4-4",
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        "7:3.4.1-1",
        "7:3.4.1-1build1",
        "7:3.4.2-1",
        "7:3.4.2-1build1",
        "7:3.4.2-2",
        "7:3.4.4-0ubuntu0.18.04.1"
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  "aliases": [],
  "details": "In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.",
  "id": "UBUNTU-CVE-2019-9718",
  "modified": "2026-04-22T07:38:56Z",
  "published": "2019-03-12T00:00:00Z",
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      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-9718"
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  ],
  "related": [
    "USN-3967-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-9718"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2019-9718 (GCVE-0-2019-9718)

SUSE-SU-2019:3184-2

UBUNTU-CVE-2019-9718 (CVE-2019-9718)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour