cnvd - cnvd-2021-40720

cnvd-2021-40720

Vulnerability from cnvd

Title: re2c堆栈消耗漏洞

Description:

re2c是一款开源的C语言和C++语言生成器。

re2c 2.0版本中存在安全漏洞。攻击者可利用该漏洞造成无限循环，消耗大量栈。

Severity: 中

Patch Name: re2c堆栈消耗漏洞的补丁

Patch Description:

re2c是一款开源的C语言和C++语言生成器。

re2c 2.0版本中存在安全漏洞。攻击者可利用该漏洞造成无限循环，消耗大量栈。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/skvadrik/re2c/issues/219

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-21232

Impacted products

Name
re2c RE2C 2.0

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-21232"
    }
  },
  "description": "re2c\u662f\u4e00\u6b3e\u5f00\u6e90\u7684C\u8bed\u8a00\u548cC++\u8bed\u8a00\u751f\u6210\u5668\u3002\n\nre2c 2.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u6d88\u8017\u5927\u91cf\u6808\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/skvadrik/re2c/issues/219",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40720",
  "openTime": "2021-06-06",
  "patchDescription": "re2c\u662f\u4e00\u6b3e\u5f00\u6e90\u7684C\u8bed\u8a00\u548cC++\u8bed\u8a00\u751f\u6210\u5668\u3002\r\n\r\nre2c 2.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u6d88\u8017\u5927\u91cf\u6808\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "re2c\u5806\u6808\u6d88\u8017\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "re2c RE2C 2.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-21232",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-30",
  "title": "re2c\u5806\u6808\u6d88\u8017\u6f0f\u6d1e"
}

CVE-2018-21232 (GCVE-0-2018-21232)

Vulnerability from cvelistv5

Published

2020-04-29 13:36

Modified

2024-08-05 12:26

Severity ?

CWE

Summary

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

References

▼	URL	Tags
	https://github.com/skvadrik/re2c/issues/219	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2020/04/27/2	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/05/14/4	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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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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