CVE-2023-45139 (GCVE-0-2023-45139)
Vulnerability from cvelistv5
Published
2024-01-10 16:03
Modified
2025-06-03 14:27
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Summary
fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.
References
Impacted products
Vendor Product Version
fonttools fonttools Version: >= 4.28.2, < 4.43.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T20:14:19.258Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"
          },
          {
            "name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"
          },
          {
            "name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-45139",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-08T18:37:10.491503Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-03T14:27:45.728Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "fonttools",
          "vendor": "fonttools",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.28.2, \u003c 4.43.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611: Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-01T18:06:54.318Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5"
        },
        {
          "name": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c"
        },
        {
          "name": "https://github.com/fonttools/fonttools/releases/tag/4.43.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/fonttools/fonttools/releases/tag/4.43.0"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/03/09/1"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/03/08/2"
        }
      ],
      "source": {
        "advisory": "GHSA-6673-4983-2vx5",
        "discovery": "UNKNOWN"
      },
      "title": "fonttools XML External Entity Injection (XXE) Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-45139",
    "datePublished": "2024-01-10T16:03:08.770Z",
    "dateReserved": "2023-10-04T16:02:46.329Z",
    "dateUpdated": "2025-06-03T14:27:45.728Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-45139\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-01-10T16:15:46.767\",\"lastModified\":\"2024-11-21T08:26:25.513\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.\"},{\"lang\":\"es\",\"value\":\"fontTools es una librer\u00eda para manipular fuentes, escrita en Python. El m\u00f3dulo subsetting tiene una vulnerabilidad de inyecci\u00f3n de entidades externas XML (XXE) que permite a un atacante resolver entidades arbitrarias cuando se analiza una fuente candidata (fuentes OT-SVG), que contiene una tabla SVG. Esto permite a los atacantes incluir archivos arbitrarios del sistema de archivos en el que se ejecuta fontTools o realizar solicitudes web desde el sistema host. Esta vulnerabilidad ha sido parcheada en la versi\u00f3n 4.43.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-611\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fonttools:fonttools:*:*:*:*:*:python:*:*\",\"versionStartIncluding\":\"4.28.2\",\"versionEndExcluding\":\"4.43.0\",\"matchCriteriaId\":\"CA51147F-FB56-471F-AA46-967C55F0AE97\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2024/03/08/2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/03/09/1\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/fonttools/fonttools/releases/tag/4.43.0\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/\",\"source\":\"security-advisories@github.com\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/03/08/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2024/03/09/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/fonttools/fonttools/releases/tag/4.43.0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\", \"name\": \"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\", \"name\": \"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/fonttools/fonttools/releases/tag/4.43.0\", \"name\": \"https://github.com/fonttools/fonttools/releases/tag/4.43.0\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/03/09/1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/03/08/2\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T20:14:19.258Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-45139\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-08T18:37:10.491503Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-08T18:37:11.985Z\"}}], \"cna\": {\"title\": \"fonttools XML External Entity Injection (XXE) Vulnerability\", \"source\": {\"advisory\": \"GHSA-6673-4983-2vx5\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"fonttools\", \"product\": \"fonttools\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 4.28.2, \u003c 4.43.0\"}]}], \"references\": [{\"url\": \"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\", \"name\": \"https://github.com/fonttools/fonttools/security/advisories/GHSA-6673-4983-2vx5\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\", \"name\": \"https://github.com/fonttools/fonttools/commit/9f61271dc1ca82ed91f529b130fe5dc5c9bf1f4c\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/fonttools/fonttools/releases/tag/4.43.0\", \"name\": \"https://github.com/fonttools/fonttools/releases/tag/4.43.0\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VY63B4SGY4QOQGUXMECRGD6K3YT3GJ75/\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/03/09/1\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/03/08/2\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-611\", \"description\": \"CWE-611: Improper Restriction of XML External Entity Reference\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-05-01T18:06:54.318Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-45139\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-06-03T14:27:45.728Z\", \"dateReserved\": \"2023-10-04T16:02:46.329Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2024-01-10T16:03:08.770Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.