Vulnerability-Lookup

FKIE_CVE-2023-6603

Vulnerability from fkie_nvd - Published: 2024-12-31 15:15 - Updated: 2026-06-17 06:51

Severity

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

Summary

A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.

References

	URL	Tags
	patrick@puiterwijk.org	https://bugzilla.redhat.com/show_bug.cgi?id=2334335	Exploit, Third Party Advisory
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://bugzilla.redhat.com/show_bug.cgi?id=2334335	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	ffmpeg	ffmpeg	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/FFmpeg/FFmpeg",
          "defaultStatus": "unknown",
          "packageName": "FFmpeg",
          "versions": [
            {
              "lessThan": "5.*",
              "status": "affected",
              "version": "3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "patrick@puiterwijk.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DE670466-3267-48D2-A826-99B23F7FBD12",
              "versionEndIncluding": "6.0",
              "versionStartIncluding": "2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in FFmpeg\u0027s HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en FFmpeg\u0027s HLS playlist parsing. Esta vulnerabilidad permite una denegaci\u00f3n de servicio a trav\u00e9s de una lista de reproducci\u00f3n HLS manipulada con fines malintencionados que desencadena una desreferencia de puntero nulo durante la inicializaci\u00f3n."
    }
  ],
  "id": "CVE-2023-6603",
  "lastModified": "2026-06-17T06:51:04.387",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "patrick@puiterwijk.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-6603",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-12-31T14:59:14.747627Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-12-31T15:15:07.490",
  "references": [
    {
      "source": "patrick@puiterwijk.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334335"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334335"
    }
  ],
  "sourceIdentifier": "patrick@puiterwijk.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "patrick@puiterwijk.org",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-6603 (GCVE-0-2023-6603)

Vulnerability from cvelistv5 – Published: 2024-12-31 14:20 – Updated: 2025-08-21 16:04

Title

Ffmpeg: null pointer dereference in ffmpeg hls parsing

Summary

A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-31 14:59 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

redhat redhat root Scorecard

References

1 reference

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2334335	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
		Affected: 3.0 , < 5.* (semver)

Date Public

2024-02-26 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2023-6603",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-31T14:59:14.747627Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-31T14:59:30.313Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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            "tags": [
              "exploit"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334335"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/FFmpeg/FFmpeg",
          "defaultStatus": "unknown",
          "packageName": "FFmpeg",
          "versions": [
            {
              "lessThan": "5.*",
              "status": "affected",
              "version": "3.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2024-02-26T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in FFmpeg\u0027s HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization."
        }
      ],
      "metrics": [
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            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
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            "type": "Red Hat severity rating"
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            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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      "problemTypes": [
        {
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              "description": "NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-21T16:04:01.868Z",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
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          "time": "2024-02-26T00:00:00.000Z",
          "value": "Made public."
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      ],
      "title": "Ffmpeg: null pointer dereference in ffmpeg hls parsing",
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    "datePublished": "2024-12-31T14:20:10.690Z",
    "dateReserved": "2023-12-08T06:53:24.259Z",
    "dateUpdated": "2025-08-21T16:04:01.868Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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FKIE_CVE-2023-6603

CVE-2023-6603 (GCVE-0-2023-6603)

Tags

Sightings

Nomenclature

Related by attack behaviour