{"id":"CVE-2022-24724","state":"PUBLISHED","title":"Integer overflow in table parsing extension leads to heap memory corruption","description":"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.","publishedAt":"2022-03-03T19:35:09.000Z","updatedAt":"2025-04-22T18:20:59.594Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["github cmark-gfm"],"affected":[{"vendor":"github","product":"cmark-gfm","versions":[{"version":"< 0.28.3.gfm.21","status":"affected"},{"version":">= 0.29.0.gfm.0, < 0.29.0.gfm.3","status":"affected"}]}],"references":["https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/","http://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.html"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T19:49:43.915Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/24xxx/CVE-2022-24724.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-24724","state":"PUBLISHED","datePublished":"2022-03-03T19:35:09.000Z","dateUpdated":"2025-04-22T18:20:59.594Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2022-02-10T00:00:00.000Z"},"containers":{"cna":{"title":"Integer overflow in table parsing extension leads to heap memory corruption","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"github","product":"cmark-gfm","versions":[{"version":"< 0.28.3.gfm.21","status":"affected"},{"version":">= 0.29.0.gfm.0, < 0.29.0.gfm.3","status":"affected"}]}],"references":[{"url":"https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x","tags":["x_refsource_CONFIRM"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/","name":"FEDORA-2022-557ad15f2e","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/","name":"FEDORA-2022-725edc74c0","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/","name":"FEDORA-2022-bc43bafcfd","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/","name":"FEDORA-2022-c42d02e5e5","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/","name":"FEDORA-2022-79b9a59e3b","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/","name":"FEDORA-2022-1f981071eb","tags":["vendor-advisory","x_refsource_FEDORA"]},{"url":"http://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.html","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2022-04-06T17:07:50.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-mc3g-88wq-6f4x","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2022-24724","STATE":"PUBLIC","TITLE":"Integer overflow in table parsing extension leads to heap memory corruption"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"cmark-gfm","version":{"version_data":[{"version_value":"< 0.28.3.gfm.21"},{"version_value":">= 0.29.0.gfm.0, < 0.29.0.gfm.3"}]}}]},"vendor_name":"github"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"cmark-gfm is GitHub's extended version of the C reference implementation of CommonMark. 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