cnvd - cnvd-2018-24030

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

JSON

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{
  "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"
}

CVE-2018-14404 (GCVE-0-2018-14404)

Vulnerability from cvelistv5

Published

2018-07-19 13:00

Modified

2024-08-05 09:29

Severity ?

CWE

Summary

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.

References

▼	URL	Tags
	https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html	mailing-list, x_refsource_MLIST
	https://gitlab.gnome.org/GNOME/libxml2/issues/10	x_refsource_MISC
	https://usn.ubuntu.com/3739-1/	vendor-advisory, x_refsource_UBUNTU
	https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817	x_refsource_MISC
	https://usn.ubuntu.com/3739-2/	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.redhat.com/show_bug.cgi?id=1595985	x_refsource_MISC
	https://access.redhat.com/errata/RHSA-2019:1543	vendor-advisory, x_refsource_REDHAT
	https://security.netapp.com/advisory/ntap-20190719-0002/	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html	mailing-list, x_refsource_MLIST

Impacted products

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

Show details on NVD website

JSON

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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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