Vulnerability-Lookup

CVE-2019-9719 (GCVE-0-2019-9719)

Vulnerability from cvelistv5 – Published: 2019-09-19 20:32 – Updated: 2024-08-04 22:01 Disputed

Summary

A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because “no evidence of a vulnerability is provided” and only “a generic warning from a static code analysis” is provided

Severity

8.8 (High)


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

CWE

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
https://github.com/libav/libav/blob/df744e3cf6654…	x_refsource_MISC
https://github.com/libav/libav/commits/master/lib…	x_refsource_MISC
https://lgtm.com/security/	x_refsource_MISC
https://lgtm.com/projects/g/libav/libav/snapshot/…	x_refsource_MISC

Show details on NVD website

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      "id": "CVE-2019-9719",
      "initial_release_date": "2026-05-27T06:14:10Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-9719",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-9719.json",
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}

CNVD-2019-35776

Vulnerability from cnvd - Published: 2019-10-17

Title

Libav缓冲区溢出漏洞（CNVD-2019-35776）

Description

Libav是Libav团队的一套跨平台的可对音频和视频进行录制、转换的解决方案，它包含了一个libavcodec编码器。 Libav 12.3版本中的subtitle解码器存在缓冲区溢出漏洞，攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://libav.org

Reference

https://lgtm.com/security/,https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name&dir=ASC&mode=heatmap#xeec693aa6d85853b:1 https://github.com/libav/libav/commits/master/libavcodec/srtdec.c https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113 https://nvd.nist.gov/vuln/detail/CVE-2019-9719

Impacted products

Name
Libav Libav 12.3

Show details on source website

JSON

To clipboard

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    }
  },
  "description": "Libav\u662fLibav\u56e2\u961f\u7684\u4e00\u5957\u8de8\u5e73\u53f0\u7684\u53ef\u5bf9\u97f3\u9891\u548c\u89c6\u9891\u8fdb\u884c\u5f55\u5236\u3001\u8f6c\u6362\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2alibavcodec\u7f16\u7801\u5668\u3002\n\nLibav 12.3\u7248\u672c\u4e2d\u7684subtitle\u89e3\u7801\u5668\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\u3002",
  "discovererName": "unknown",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://libav.org",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-35776",
  "openTime": "2019-10-17",
  "products": {
    "product": "Libav Libav 12.3"
  },
  "referenceLink": "https://lgtm.com/security/,https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name\u0026dir=ASC\u0026mode=heatmap#xeec693aa6d85853b:1\r\nhttps://github.com/libav/libav/commits/master/libavcodec/srtdec.c\r\nhttps://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9719",
  "serverity": "\u4e2d",
  "submitTime": "2019-09-19",
  "title": "Libav\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2019-35776\uff09"
}

FKIE_CVE-2019-9719

Vulnerability from fkie_nvd - Published: 2019-09-19 21:15 - Updated: 2026-06-17 02:44

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
cve@mitre.org	https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113	Exploit, Third Party Advisory
cve@mitre.org	https://github.com/libav/libav/commits/master/libavcodec/srtdec.c	Third Party Advisory
cve@mitre.org	https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name&dir=ASC&mode=heatmap#xeec693aa6d85853b:1	Exploit, Third Party Advisory
cve@mitre.org	https://lgtm.com/security/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libav/libav/commits/master/libavcodec/srtdec.c	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name&dir=ASC&mode=heatmap#xeec693aa6d85853b:1	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lgtm.com/security/	Third Party Advisory

Impacted products

	Vendor	Product	Version
	libav	libav	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "13D267B7-CF5C-4C69-9E61-2F793B918C82",
              "versionEndIncluding": "12.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because \u201cno evidence of a vulnerability is provided\u201d and only \u201ca generic warning from a static code analysis\u201d is provided"
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** Un desbordamiento de b\u00fafer basado en pila en el decodificador de subt\u00edtulos en Libav 12.3 permite a los atacantes corromper la pila a trav\u00e9s de un archivo de video especialmente dise\u00f1ado en formato Matroska, porque srt_to_ass en libavcodec / srtdec.c usa mal snprintf. NOTA: Los terceros discuten que esto es una vulnerabilidad porque \"no se proporciona evidencia de una vulnerabilidad\" y solo se proporciona \"una advertencia gen\u00e9rica de un an\u00e1lisis de c\u00f3digo est\u00e1tico\"."
    }
  ],
  "id": "CVE-2019-9719",
  "lastModified": "2026-06-17T02:44:13.763",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-09-19T21:15:10.503",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libav/libav/commits/master/libavcodec/srtdec.c"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name\u0026dir=ASC\u0026mode=heatmap#xeec693aa6d85853b:1"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://lgtm.com/security/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libav/libav/commits/master/libavcodec/srtdec.c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name\u0026dir=ASC\u0026mode=heatmap#xeec693aa6d85853b:1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://lgtm.com/security/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-WM38-2P64-43V7

Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-03-21 03:33

Details

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2019-9719"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-09-19T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf.",
  "id": "GHSA-wm38-2p64-43v7",
  "modified": "2024-03-21T03:33:41Z",
  "published": "2022-05-24T16:56:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9719"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libav/libav/commits/master/libavcodec/srtdec.c"
    },
    {
      "type": "WEB",
      "url": "https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name\u0026dir=ASC\u0026mode=heatmap#xeec693aa6d85853b:1"
    },
    {
      "type": "WEB",
      "url": "https://lgtm.com/security"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2019-9719

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

** DISPUTED ** A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because “no evidence of a vulnerability is provided” and only “a generic warning from a static code analysis” is provided.

Aliases

CVE-2019-9719

Aliases

CVE-2019-9719

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2019-9719",
    "description": "** DISPUTED ** A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because \u201cno evidence of a vulnerability is provided\u201d and only \u201ca generic warning from a static code analysis\u201d is provided.",
    "id": "GSD-2019-9719",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-9719.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-9719"
      ],
      "details": "** DISPUTED ** A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because \u201cno evidence of a vulnerability is provided\u201d and only \u201ca generic warning from a static code analysis\u201d is provided.",
      "id": "GSD-2019-9719",
      "modified": "2023-12-13T01:23:47.102039Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
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        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-9719",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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          }
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            "refsource": "MISC",
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          },
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            "type": "Primary"
          }
        ]
      }
    }
  }
}

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.

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.

Action not permitted

CVE-2019-9719 (GCVE-0-2019-9719)

CNVD-2019-35776

FKIE_CVE-2019-9719

GHSA-WM38-2P64-43V7

GSD-2019-9719

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