Vulnerability-Lookup

ubuntu-cve-2019-9721

Vulnerability from osv_ubuntu

Published

2019-03-12 00:00

Modified

2026-04-22 07:38

Summary

Details

A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace 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

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-2019-9721	REPORT
	https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8…	REPORT
	https://ubuntu.com/security/notices/USN-3967-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-9721	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"
          },
          {
            "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"
          },
          {
            "binary_name": "libavutil55",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libpostproc54",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ffmpeg",
        "purl": "pkg:deb/ubuntu/ffmpeg@7:3.4.6-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7:3.4.6-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7:3.3.4-2",
        "7:3.3.4-2build3",
        "7:3.4-2ubuntu2",
        "7:3.4-4",
        "7:3.4-4build1",
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.",
  "id": "UBUNTU-CVE-2019-9721",
  "modified": "2026-04-22T07:38:56Z",
  "published": "2019-03-12T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9721"
    },
    {
      "type": "REPORT",
      "url": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3967-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-9721"
    }
  ],
  "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-2019-9721"
  ]
}

CVE-2019-9721 (GCVE-0-2019-9721)

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

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

4 references

URL	Tags
http://www.securityfocus.com/bid/107384	vdb-entryx_refsource_BID
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8…	x_refsource_MISC
https://usn.ubuntu.com/3967-1/	vendor-advisoryx_refsource_UBUNTU
https://github.com/FFmpeg/FFmpeg/commit/273f2755c…	x_refsource_MISC

Date Public

2019-03-12 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T22:01:53.919Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "107384",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/107384"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65"
          },
          {
            "name": "USN-3967-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3967-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2019-03-12T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-04T19:41:49.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "107384",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/107384"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65"
        },
        {
          "name": "USN-3967-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3967-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-9721",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c has a complex format argument to sscanf."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "107384",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/107384"
            },
            {
              "name": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65",
              "refsource": "MISC",
              "url": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65"
            },
            {
              "name": "USN-3967-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3967-1/"
            },
            {
              "name": "https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774",
              "refsource": "MISC",
              "url": "https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2019-9721",
    "datePublished": "2019-03-12T06:00:00.000Z",
    "dateReserved": "2019-03-12T00:00:00.000Z",
    "dateUpdated": "2024-08-04T22:01:53.919Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-3967-1

Vulnerability from osv_ubuntu

Published

2019-05-06 17:24

Modified

2026-04-22 07:36

Summary

FFmpeg vulnerabilities

Details

It was discovered that FFmpeg contained multiple security issues when handling certain multimedia files. If a user were tricked into opening a crafted multimedia file, an attacker could cause a denial of service via application crash.

References

URL

Type

	https://ubuntu.com/security/notices/USN-3967-1	ADVISORY
	https://ubuntu.com/security/CVE-2018-15822	REPORT
	https://ubuntu.com/security/CVE-2019-9718	REPORT
	https://ubuntu.com/security/CVE-2019-9721	REPORT
	https://ubuntu.com/security/CVE-2019-11338	REPORT
	https://ubuntu.com/security/CVE-2019-11339	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-15822",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-9718",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2019-9721",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2019-11338",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ffmpeg",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "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"
          },
          {
            "binary_name": "libavutil55",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libpostproc54",
            "binary_version": "7:3.4.6-0ubuntu0.18.04.1"
          },
          {
            "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ffmpeg",
        "purl": "pkg:deb/ubuntu/ffmpeg@7:3.4.6-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7:3.4.6-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7:3.3.4-2",
        "7:3.3.4-2build3",
        "7:3.4-2ubuntu2",
        "7:3.4-4",
        "7:3.4-4build1",
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that FFmpeg contained multiple security issues when handling\ncertain multimedia files. If a user were tricked into opening a crafted\nmultimedia file, an attacker could cause a denial of service via application\ncrash.\n",
  "id": "USN-3967-1",
  "modified": "2026-04-22T07:36:36Z",
  "published": "2019-05-06T17:24:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3967-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-15822"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9718"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-9721"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-11338"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-11339"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "FFmpeg vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-15822",
    "UBUNTU-CVE-2019-9718",
    "UBUNTU-CVE-2019-9721",
    "UBUNTU-CVE-2019-11338",
    "UBUNTU-CVE-2019-11339"
  ]
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2019-9721

Vulnerability from osv_ubuntu

CVE-2019-9721 (GCVE-0-2019-9721)

usn-3967-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature