cnvd-2015-08375
Vulnerability from cnvd

Title: libxml2拒绝服务漏洞(CNVD-2015-08375)

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 2.9.2版本的‘xmlNextChar’函数中存在安全漏洞,该漏洞源于程序未能正确检查状态。攻击者可借助特制的XML数据利用该漏洞造成拒绝服务(基于堆的缓冲区越边界读取和应用程序崩溃),或获取敏感信息。

Severity:

Patch Name: libxml2拒绝服务漏洞(CNVD-2015-08375)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 2.9.2版本的‘xmlNextChar’函数中存在安全漏洞,该漏洞源于程序未能正确检查状态。攻击者可借助特制的XML数据利用该漏洞造成拒绝服务(基于堆的缓冲区越边界读取和应用程序崩溃),或获取敏感信息。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:

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞: https://git.gnome.org/browse/libxml2/commit/?id=ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe

Reference: https://git.gnome.org/browse/libxml2/commit/?id=ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe

Impacted products
Name
libxml2 Libxml2 2.9.2
Show details on source website


{
  "bids": {
    "bid": {
      "bidNumber": "77621"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8241"
    }
  },
  "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 2.9.2\u7248\u672c\u7684\u2018xmlNextChar\u2019\u51fd\u6570\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u72b6\u6001\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684XML\u6570\u636e\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u8d8a\u8fb9\u754c\u8bfb\u53d6\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\uff0c\u6216\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "Hugh Davenport",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://git.gnome.org/browse/libxml2/commit/?id=ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-08375",
  "openTime": "2015-12-22",
  "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 2.9.2\u7248\u672c\u7684\u2018xmlNextChar\u2019\u51fd\u6570\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u72b6\u6001\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684XML\u6570\u636e\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u57fa\u4e8e\u5806\u7684\u7f13\u51b2\u533a\u8d8a\u8fb9\u754c\u8bfb\u53d6\u548c\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\uff0c\u6216\u83b7\u53d6\u654f\u611f\u4fe1\u606f\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-08375\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "libxml2 Libxml2 2.9.2"
  },
  "referenceLink": "https://git.gnome.org/browse/libxml2/commit/?id=ab2b9a93ff19cedde7befbf2fcc48c6e352b6cbe",
  "serverity": "\u4e2d",
  "submitTime": "2015-12-18",
  "title": "libxml2\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-08375\uff09"
}


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