cnvd-2015-07968
Vulnerability from cnvd
Title
Google Chrome sfntly整数溢出漏洞
Description
Google Chrome是美国谷歌（Google）公司开发的一款Web浏览器。Google sfntly是其中的一个用于使用、编辑和创建基于SFNT字体的字体工具包。 Google Chrome 47.0.2526.73之前版本中使用的Google sfntly的data/font_data.cc文件中的‘FontData::Bound’函数存在整数溢出漏洞。远程攻击者可借助SFNT容器的字体数据中特制的偏移值或长度值利用该漏洞造成拒绝服务。
Severity
中
Patch Name
Google Chrome sfntly整数溢出漏洞的补丁
Patch Description
Google Chrome是美国谷歌（Google）公司开发的一款Web浏览器。Google sfntly是其中的一个用于使用、编辑和创建基于SFNT字体的字体工具包。 Google Chrome 47.0.2526.73之前版本中使用的Google sfntly的data/font_data.cc文件中的‘FontData::Bound’函数存在整数溢出漏洞。远程攻击者可借助SFNT容器的字体数据中特制的偏移值或长度值利用该漏洞造成拒绝服务。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html

Reference
https://github.com/googlei18n/sfntly/commit/de776d4ef06ca29c240de3444348894f032b03ff
Impacted products
Name
Google Chrome <47.0.2526.73
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-6781"
    }
  },
  "description": "Google Chrome\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u6b3eWeb\u6d4f\u89c8\u5668\u3002Google sfntly\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u4f7f\u7528\u3001\u7f16\u8f91\u548c\u521b\u5efa\u57fa\u4e8eSFNT\u5b57\u4f53\u7684\u5b57\u4f53\u5de5\u5177\u5305\u3002\r\n\r\nGoogle Chrome 47.0.2526.73\u4e4b\u524d\u7248\u672c\u4e2d\u4f7f\u7528\u7684Google sfntly\u7684data/font_data.cc\u6587\u4ef6\u4e2d\u7684\u2018FontData::Bound\u2019\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9SFNT\u5bb9\u5668\u7684\u5b57\u4f53\u6570\u636e\u4e2d\u7279\u5236\u7684\u504f\u79fb\u503c\u6216\u957f\u5ea6\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Google",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-07968",
  "openTime": "2015-12-08",
  "patchDescription": "Google Chrome\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u5f00\u53d1\u7684\u4e00\u6b3eWeb\u6d4f\u89c8\u5668\u3002Google sfntly\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7528\u4e8e\u4f7f\u7528\u3001\u7f16\u8f91\u548c\u521b\u5efa\u57fa\u4e8eSFNT\u5b57\u4f53\u7684\u5b57\u4f53\u5de5\u5177\u5305\u3002\r\n\r\nGoogle Chrome 47.0.2526.73\u4e4b\u524d\u7248\u672c\u4e2d\u4f7f\u7528\u7684Google sfntly\u7684data/font_data.cc\u6587\u4ef6\u4e2d\u7684\u2018FontData::Bound\u2019\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9SFNT\u5bb9\u5668\u7684\u5b57\u4f53\u6570\u636e\u4e2d\u7279\u5236\u7684\u504f\u79fb\u503c\u6216\u957f\u5ea6\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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 sfntly\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Google Chrome \u003c47.0.2526.73"
  },
  "referenceLink": "https://github.com/googlei18n/sfntly/commit/de776d4ef06ca29c240de3444348894f032b03ff",
  "serverity": "\u4e2d",
  "submitTime": "2015-12-08",
  "title": "Google Chrome sfntly\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e"
}


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