cnvd-2015-07966
Vulnerability from cnvd
Title
Google Chrome PDFium拒绝服务漏洞（CNVD-2015-07966）
Description
Google Chrome是美国谷歌（Google）公司开发的一款Web浏览器。PDFium是其中的一个开源PDF渲染引擎。 Google Chrome 47.0.2526.73之前版本中使用的PDFium的fxcodec/jbig2/JBig2_SymbolDict.cpp文件中的‘CJBig2_SymbolDict’类存在安全漏洞。远程攻击者可通过带有特制的JBIG2压缩数据的PDF文档利用该漏洞造成拒绝服务（越边界内存访问）。
Severity
中
Patch Name
Google Chrome PDFium拒绝服务漏洞（CNVD-2015-07966）的补丁
Patch Description
Google Chrome是美国谷歌（Google）公司开发的一款Web浏览器。PDFium是其中的一个开源PDF渲染引擎。 Google Chrome 47.0.2526.73之前版本中使用的PDFium的fxcodec/jbig2/JBig2_SymbolDict.cpp文件中的‘CJBig2_SymbolDict’类存在安全漏洞。远程攻击者可通过带有特制的JBIG2压缩数据的PDF文档利用该漏洞造成拒绝服务（越边界内存访问）。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

用户可参考如下供应商提供的安全公告获得补丁信息： http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html

Reference
https://codereview.chromium.org/1388203003 http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html https://code.google.com/p/chromium/issues/detail?id=514891
Impacted products
Name
Google Chrome <47.0.2526.73
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-6778"
    }
  },
  "description": "Google Chrome\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u6b3eWeb\u6d4f\u89c8\u5668\u3002PDFium\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5f00\u6e90PDF\u6e32\u67d3\u5f15\u64ce\u3002\r\n\r\nGoogle Chrome 47.0.2526.73\u4e4b\u524d\u7248\u672c\u4e2d\u4f7f\u7528\u7684PDFium\u7684fxcodec/jbig2/JBig2_SymbolDict.cpp\u6587\u4ef6\u4e2d\u7684\u2018CJBig2_SymbolDict\u2019\u7c7b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5e26\u6709\u7279\u5236\u7684JBIG2\u538b\u7f29\u6570\u636e\u7684PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u5185\u5b58\u8bbf\u95ee\uff09\u3002",
  "discovererName": "Google",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07966",
  "openTime": "2015-12-08",
  "patchDescription": "Google Chrome\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u6b3eWeb\u6d4f\u89c8\u5668\u3002PDFium\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5f00\u6e90PDF\u6e32\u67d3\u5f15\u64ce\u3002\r\n\r\nGoogle Chrome 47.0.2526.73\u4e4b\u524d\u7248\u672c\u4e2d\u4f7f\u7528\u7684PDFium\u7684fxcodec/jbig2/JBig2_SymbolDict.cpp\u6587\u4ef6\u4e2d\u7684\u2018CJBig2_SymbolDict\u2019\u7c7b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5e26\u6709\u7279\u5236\u7684JBIG2\u538b\u7f29\u6570\u636e\u7684PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u5185\u5b58\u8bbf\u95ee\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": "Google Chrome PDFium\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07966\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Google Chrome \u003c47.0.2526.73"
  },
  "referenceLink": "https://codereview.chromium.org/1388203003 \r\nhttp://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html \r\nhttps://code.google.com/p/chromium/issues/detail?id=514891",
  "serverity": "\u4e2d",
  "submitTime": "2015-12-07",
  "title": "Google Chrome PDFium\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2015-07966\uff09"
}


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