cnvd - cnvd-2021-24267

cnvd-2021-24267

Vulnerability from cnvd

Title: GNU libmicrohttpd缓冲区溢出漏洞

Description:

GNU libmicrohttpd是GNU开源的一个应用程序。将HTTP服务器作为另一个应用程序的一部分来运行。

libmicrohttpd 0.9.71之前版本存在缓冲区溢出漏洞，该漏洞源于缺失边界检查将导致缓冲区溢出，攻击者可利用该漏洞在使用libmicrohttpd的应用程序中写入任意数据。

Severity: 高

Patch Name: GNU libmicrohttpd缓冲区溢出漏洞的补丁

Patch Description:

GNU libmicrohttpd是GNU开源的一个应用程序。将HTTP服务器作为另一个应用程序的一部分来运行。

libmicrohttpd 0.9.71之前版本存在缓冲区溢出漏洞，该漏洞源于缺失边界检查将导致缓冲区溢出，攻击者可利用该漏洞在使用libmicrohttpd的应用程序中写入任意数据。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://bugzilla.redhat.com/show_bug.cgi?id=1939127

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-3466

Impacted products

Name
GNU libmicrohttpd <0.9.71

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3466"
    }
  },
  "description": "GNU libmicrohttpd\u662fGNU\u5f00\u6e90\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002\u5c06HTTP\u670d\u52a1\u5668\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7684\u4e00\u90e8\u5206\u6765\u8fd0\u884c\u3002\n\nlibmicrohttpd 0.9.71\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5931\u8fb9\u754c\u68c0\u67e5\u5c06\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u4f7f\u7528libmicrohttpd\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5199\u5165\u4efb\u610f\u6570\u636e\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://bugzilla.redhat.com/show_bug.cgi?id=1939127",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-24267",
  "openTime": "2021-04-01",
  "patchDescription": "GNU libmicrohttpd\u662fGNU\u5f00\u6e90\u7684\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002\u5c06HTTP\u670d\u52a1\u5668\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7684\u4e00\u90e8\u5206\u6765\u8fd0\u884c\u3002\r\n\r\nlibmicrohttpd 0.9.71\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5931\u8fb9\u754c\u68c0\u67e5\u5c06\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u4f7f\u7528libmicrohttpd\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5199\u5165\u4efb\u610f\u6570\u636e\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": "GNU libmicrohttpd\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "GNU libmicrohttpd \u003c0.9.71"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3466",
  "serverity": "\u9ad8",
  "submitTime": "2021-03-29",
  "title": "GNU libmicrohttpd\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-3466 (GCVE-0-2021-3466)

Vulnerability from cvelistv5

Published

2021-03-25 00:00

Modified

2024-08-03 16:53

Severity ?

CWE

CWE-120

Summary

A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1939127
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5NEPVGP3L2CZHLZ4UB44PEILHKPDBOG/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75HDMREKITMGPGE62NP7KE62ZJVLETXN/	vendor-advisory
	https://security.gentoo.org/glsa/202311-08	vendor-advisory

Impacted products

	Vendor	Product	Version
	n/a	libmicrohttpd	Version: libmicrohttpd 0.9.70

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:53:17.627Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939127"
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            "tags": [
              "vendor-advisory",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/"
          },
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          },
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            "tags": [
              "vendor-advisory",
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          },
          {
            "name": "GLSA-202311-08",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-08"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libmicrohttpd",
          "vendor": "n/a",
          "versions": [
            {
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939127"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/"
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    "datePublished": "2021-03-25T00:00:00",
    "dateReserved": "2021-03-24T00:00:00",
    "dateUpdated": "2024-08-03T16:53:17.627Z",
    "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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