CNVD-2020-33149

Vulnerability from cnvd - Published: 2020-06-16
VLAI
Title
PHP缓冲区溢出漏洞（CNVD-2020-33149）
Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP 7.2.0版本、7.3.0版本和7.4.0版本中存在缓冲区溢出漏洞，该漏洞源于‘mbfl_filt_conv_big5_wchar’函数未能正确检查边界。远程攻击者可借助特制参数利用该漏洞在系统上执行任意代码，或导致应用程序崩溃。
Severity
高
Patch Name
PHP缓冲区溢出漏洞（CNVD-2020-33149）的补丁
Patch Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP 7.2.0版本、7.3.0版本和7.4.0版本中存在缓冲区溢出漏洞，该漏洞源于‘mbfl_filt_conv_big5_wchar’函数未能正确检查边界。远程攻击者可借助特制参数利用该漏洞在系统上执行任意代码，或导致应用程序崩溃。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://www.ibm.com/support/pages/node/6208333

Reference
https://www.ibm.com/blogs/psirt/security-bulletin-ibm-api-connect-is-impacted-by-vulnerabilities-in-php-cve-2020-7069-cve-2020-7059/
Impacted products
Name
['PHP PHP 7.4.0', 'PHP PHP 7.2.0', 'PHP PHP 7.3.0']
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7069"
    }
  },
  "description": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHPGroup\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u7684\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u4e3b\u8981\u7528\u4e8eWeb\u5f00\u53d1\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nPHP 7.2.0\u7248\u672c\u30017.3.0\u7248\u672c\u548c7.4.0\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u2018mbfl_filt_conv_big5_wchar\u2019\u51fd\u6570\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u8fb9\u754c\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u6216\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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://www.ibm.com/support/pages/node/6208333",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-33149",
  "openTime": "2020-06-16",
  "patchDescription": "PHP\uff08PHP\uff1aHypertext Preprocessor\uff0cPHP\uff1a\u8d85\u6587\u672c\u9884\u5904\u7406\u5668\uff09\u662fPHPGroup\u548c\u5f00\u653e\u6e90\u4ee3\u7801\u793e\u533a\u7684\u5171\u540c\u7ef4\u62a4\u7684\u4e00\u79cd\u5f00\u6e90\u7684\u901a\u7528\u8ba1\u7b97\u673a\u811a\u672c\u8bed\u8a00\u3002\u8be5\u8bed\u8a00\u4e3b\u8981\u7528\u4e8eWeb\u5f00\u53d1\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u5e93\u53ca\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nPHP 7.2.0\u7248\u672c\u30017.3.0\u7248\u672c\u548c7.4.0\u7248\u672c\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u2018mbfl_filt_conv_big5_wchar\u2019\u51fd\u6570\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u8fb9\u754c\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u53c2\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u6216\u5bfc\u81f4\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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": "PHP\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-33149\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "PHP PHP 7.4.0",
      "PHP PHP 7.2.0",
      "PHP PHP 7.3.0"
    ]
  },
  "referenceLink": "https://www.ibm.com/blogs/psirt/security-bulletin-ibm-api-connect-is-impacted-by-vulnerabilities-in-php-cve-2020-7069-cve-2020-7059/",
  "serverity": "\u9ad8",
  "submitTime": "2020-05-13",
  "title": "PHP\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-33149\uff09"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.