FKIE_CVE-2022-24724

Vulnerability from fkie_nvd - Published: 2022-03-03 20:15 - Updated: 2026-06-17 04:32
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
cmark-gfm is GitHub's extended version of the C reference implementation of CommonMark. Prior to versions 0.29.0.gfm.3 and 0.28.3.gfm.21, an integer overflow in cmark-gfm's table row parsing `table.c:row_from_string` may lead to heap memory corruption when parsing tables who's marker rows contain more than UINT16_MAX columns. The impact of this heap corruption ranges from Information Leak to Arbitrary Code Execution depending on how and where `cmark-gfm` is used. If `cmark-gfm` is used for rendering remote user controlled markdown, this vulnerability may lead to Remote Code Execution (RCE) in applications employing affected versions of the `cmark-gfm` library. This vulnerability has been patched in the following cmark-gfm versions 0.29.0.gfm.3 and 0.28.3.gfm.21. A workaround is available. The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling the table extension will prevent this vulnerability from being triggered.
References
security-advisories@github.comhttp://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.htmlExploit, Third Party Advisory
security-advisories@github.comhttps://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4xThird Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.htmlExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4xThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/
Impacted products
Vendor Product Version
github cmark-gfm *
github cmark-gfm *
fedoraproject fedora 34
fedoraproject fedora 35
fedoraproject fedora 36
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "cmark-gfm",
          "vendor": "github",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.28.3.gfm.21"
            },
            {
              "status": "affected",
              "version": "\u003e= 0.29.0.gfm.0, \u003c 0.29.0.gfm.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE338A98-B4AC-4761-B15C-8E94487F3BD7",
              "versionEndExcluding": "0.28.3.gfm.21",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "47034C04-8392-42EC-A3E6-7744663DD3A7",
              "versionEndExcluding": "0.29.0.gfm.3",
              "versionStartExcluding": "0.28.3.gfm.21",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
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          "cpeMatch": [
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              "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835",
              "vulnerable": true
            },
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              "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",
              "vulnerable": true
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        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "cmark-gfm is GitHub\u0027s extended version of the C reference implementation of CommonMark. Prior to versions 0.29.0.gfm.3 and 0.28.3.gfm.21, an integer overflow in cmark-gfm\u0027s table row parsing `table.c:row_from_string` may lead to heap memory corruption when parsing tables who\u0027s marker rows contain more than UINT16_MAX columns. The impact of this heap corruption ranges from Information Leak to Arbitrary Code Execution depending on how and where `cmark-gfm` is used. If `cmark-gfm` is used for rendering remote user controlled markdown, this vulnerability may lead to Remote Code Execution (RCE) in applications employing affected versions of the `cmark-gfm` library. This vulnerability has been patched in the following cmark-gfm versions 0.29.0.gfm.3 and 0.28.3.gfm.21. A workaround is available. The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling the table extension will prevent this vulnerability from being triggered."
    },
    {
      "lang": "es",
      "value": "cmark-gfm es la versi\u00f3n extendida de GitHub de la implementaci\u00f3n de referencia en C de CommonMark. En versiones anteriores a 0.29.0.gfm.3 y 0.28.3.gfm.21, un desbordamiento de enteros en el an\u00e1lisis de filas de tablas de cmark-gfm, \"table.c:row_from_string\", pod\u00eda conllevar a una corrupci\u00f3n de la memoria de la pila cuando eran analizadas tablas cuyas filas de marcadores conten\u00edan m\u00e1s de UINT16_MAX columnas. El impacto de esta corrupci\u00f3n de memoria va desde un filtrado de informaci\u00f3n hasta una ejecuci\u00f3n de c\u00f3digo arbitrario, dependiendo de c\u00f3mo y d\u00f3nde es usado \"cmark-gfm\". Si \"cmark-gfm\" es usado para renderizar markdown controlado por usuarios remotos, esta vulnerabilidad puede conllevar a una Ejecuci\u00f3n de C\u00f3digo Remota (RCE) en aplicaciones que empleen versiones afectadas de la biblioteca \"cmark-gfm\". Esta vulnerabilidad ha sido parcheada en las siguientes versiones de cmark-gfm: 0.29.0.gfm.3 y 0.28.3.gfm.21. Se presenta una medida de mitigaci\u00f3n disponible. La vulnerabilidad se presenta en las extensiones de tablas markdown de cmark-gfm. Si es deshabilitada la extensi\u00f3n de la tabla, podr\u00e1 evitarse que sea producida esta vulnerabilidad"
    }
  ],
  "id": "CVE-2022-24724",
  "lastModified": "2026-06-17T04:32:22.620",
  "metrics": {
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      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "attackVector": "NETWORK",
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          "baseScore": 8.8,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "type": "Secondary"
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-24724",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-22T15:44:15.748265Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-03-03T20:15:07.997",
  "references": [
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    },
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      "url": "https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x"
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    {
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-190"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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