cnvd-2018-24030
Vulnerability from cnvd
Title
libxml2 'xpath.c:xmlXPathCompOpEval()'函数空指针漏洞
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 2.9.8及之前版本中的'xpath.c:xmlXPathCompOpEval()'函数存在安全漏洞。攻击者可借助无效的XPath表达式利用该漏洞造成拒绝服务（空指针逆向引用和应用程序崩溃）。
Severity
中
Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： http://xmlsoft.org/

Reference
https://cert-portal.siemens.com/productcert/pdf/ssb-439005.pdf
Impacted products
Name
XMLSoft Libxml2 <=2.9.8
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-14404"
    }
  },
  "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\n\nlibxml2 2.9.8\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u0027xpath.c:xmlXPathCompOpEval()\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u65e0\u6548\u7684XPath\u8868\u8fbe\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttp://xmlsoft.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-24030",
  "openTime": "2018-11-28",
  "products": {
    "product": "XMLSoft Libxml2 \u003c=2.9.8"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/pdf/ssb-439005.pdf",
  "serverity": "\u4e2d",
  "submitTime": "2018-11-28",
  "title": "libxml2 \u0027xpath.c:xmlXPathCompOpEval()\u0027\u51fd\u6570\u7a7a\u6307\u9488\u6f0f\u6d1e"
}


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