cnvd-2017-37714
Vulnerability from cnvd
Title
libxml2 parser.c文件拒绝服务漏洞
Description
libxml2是GNOME项目组所研发的一个基于C语言的用来解析XML文档的函数库，它支持多种编码格式、Xpath解析、Well-formed和valid验证等。 libxml2 2.9.5之前的版本中的parser.c文件存在拒绝服务漏洞，该漏洞源于程序在参数实体中未能阻止无限递归。攻击者可利用该漏洞造成拒绝服务（无限循环或内存耗尽）。
Severity
中
Patch Name
libxml2 parser.c文件拒绝服务漏洞的补丁
Patch Description
libxml2是GNOME项目组所研发的一个基于C语言的用来解析XML文档的函数库，它支持多种编码格式、Xpath解析、Well-formed和valid验证等。 libxml2 2.9.5之前的版本中的parser.c文件存在拒绝服务漏洞，该漏洞源于程序在参数实体中未能阻止无限递归。攻击者可利用该漏洞造成拒绝服务（无限循环或内存耗尽）。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/GNOME/libxml2/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961

Reference
https://nvd.nist.gov/vuln/detail/CVE-2017-16932
Impacted products
Name
XMLSoft Libxml2 <2.9.5
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-16932"
    }
  },
  "description": "libxml2\u662fGNOME\u9879\u76ee\u7ec4\u6240\u7814\u53d1\u7684\u4e00\u4e2a\u57fa\u4e8eC\u8bed\u8a00\u7684\u7528\u6765\u89e3\u6790XML\u6587\u6863\u7684\u51fd\u6570\u5e93\uff0c\u5b83\u652f\u6301\u591a\u79cd\u7f16\u7801\u683c\u5f0f\u3001Xpath\u89e3\u6790\u3001Well-formed\u548cvalid\u9a8c\u8bc1\u7b49\u3002\r\n\r\nlibxml2 2.9.5\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684parser.c\u6587\u4ef6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u53c2\u6570\u5b9e\u4f53\u4e2d\u672a\u80fd\u963b\u6b62\u65e0\u9650\u9012\u5f52\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\u6216\u5185\u5b58\u8017\u5c3d\uff09\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/GNOME/libxml2/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-37714",
  "openTime": "2017-12-21",
  "patchDescription": "libxml2\u662fGNOME\u9879\u76ee\u7ec4\u6240\u7814\u53d1\u7684\u4e00\u4e2a\u57fa\u4e8eC\u8bed\u8a00\u7684\u7528\u6765\u89e3\u6790XML\u6587\u6863\u7684\u51fd\u6570\u5e93\uff0c\u5b83\u652f\u6301\u591a\u79cd\u7f16\u7801\u683c\u5f0f\u3001Xpath\u89e3\u6790\u3001Well-formed\u548cvalid\u9a8c\u8bc1\u7b49\u3002\r\n\r\nlibxml2 2.9.5\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684parser.c\u6587\u4ef6\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u53c2\u6570\u5b9e\u4f53\u4e2d\u672a\u80fd\u963b\u6b62\u65e0\u9650\u9012\u5f52\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\u6216\u5185\u5b58\u8017\u5c3d\uff09\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": "libxml2 parser.c\u6587\u4ef6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "XMLSoft Libxml2 \u003c2.9.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-16932",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-24",
  "title": "libxml2 parser.c\u6587\u4ef6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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