cnvd - cnvd-2022-23470

cnvd-2022-23470

Vulnerability from cnvd

Title: cmark-gfm输入验证错误漏洞

Description:

cmark-gfm是CommonMark的 C参考实现的扩展版本，是带有规范的Markdown语法的合理化版本。

cmark-gfm存在输入验证错误漏洞，攻击者可利用该漏洞导致使用受影响的cmark-gfm库版本的应用程序中的远程代码执行。

Severity: 高

Patch Name: cmark-gfm输入验证错误漏洞的补丁

Patch Description:

cmark-gfm是CommonMark的 C参考实现的扩展版本，是带有规范的Markdown语法的合理化版本。

cmark-gfm存在输入验证错误漏洞，攻击者可利用该漏洞导致使用受影响的cmark-gfm库版本的应用程序中的远程代码执行。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x

Reference: https://nvd.nist.gov/vuln/detail/CVE-2022-24724

Impacted products

Name
['cmark-gfm cmark-gfm <0.29.0.gfm.3', 'cmark-gfm cmark-gfm <0.28.3.gfm.21']

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    "cve": {
      "cveNumber": "CVE-2022-24724"
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  "number": "CNVD-2022-23470",
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  "serverity": "\u9ad8",
  "submitTime": "2022-03-04",
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}

CVE-2022-24724 (GCVE-0-2022-24724)

Vulnerability from cvelistv5

Published

2022-03-03 19:35

Modified

2025-04-22 18:20

Severity ?

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

CWE

CWE-190 - Integer Overflow or Wraparound

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

▼	URL	Tags
	https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/	vendor-advisory, x_refsource_FEDORA
	http://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	github	cmark-gfm	Version: < 0.28.3.gfm.21 Version: >= 0.29.0.gfm.0, < 0.29.0.gfm.3

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    "datePublished": "2022-03-03T19:35:09.000Z",
    "dateReserved": "2022-02-10T00:00:00.000Z",
    "dateUpdated": "2025-04-22T18:20:59.594Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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.

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