cnvd-2020-03049
Vulnerability from cnvd
Title
Qt qtbase缓冲区溢出漏洞
Description
Qt是一个1991年由Qt Company开发的跨平台C++图形用户界面应用程序开发框架。 Qt qtbase中的qtextengine.cpp文件的‘generateDirectionalRuns()’函数存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
Severity
中
Patch Name
Qt qtbase缓冲区溢出漏洞的补丁
Patch Description
Qt是一个1991年由Qt Company开发的跨平台C++图形用户界面应用程序开发框架。 Qt qtbase中的qtextengine.cpp文件的‘generateDirectionalRuns()’函数存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。 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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://code.qt.io

Reference
https://codereview.qt-project.org/c/qt/qtbase/+/271889 https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784 https://www.debian.org/security/2019/dsa-4556 https://www.auscert.org.au/bulletins/ESB-2019.4054/
Impacted products
Name
['Qt qtbase >=5.11.0，<=5.11.3', 'Qt qtbase >=5.12.0，<5.12.5']
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-18281"
    }
  },
  "description": "Qt\u662f\u4e00\u4e2a1991\u5e74\u7531Qt Company\u5f00\u53d1\u7684\u8de8\u5e73\u53f0C++\u56fe\u5f62\u7528\u6237\u754c\u9762\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u6846\u67b6\u3002\n\nQt qtbase\u4e2d\u7684qtextengine.cpp\u6587\u4ef6\u7684\u2018generateDirectionalRuns()\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://code.qt.io",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03049",
  "openTime": "2020-01-21",
  "patchDescription": "Qt\u662f\u4e00\u4e2a1991\u5e74\u7531Qt Company\u5f00\u53d1\u7684\u8de8\u5e73\u53f0C++\u56fe\u5f62\u7528\u6237\u754c\u9762\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u6846\u67b6\u3002\r\n\r\nQt qtbase\u4e2d\u7684qtextengine.cpp\u6587\u4ef6\u7684\u2018generateDirectionalRuns()\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\uff0c\u5bfc\u81f4\u5411\u5173\u8054\u7684\u5176\u4ed6\u5185\u5b58\u4f4d\u7f6e\u4e0a\u6267\u884c\u4e86\u9519\u8bef\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u6216\u5806\u6ea2\u51fa\u7b49\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": "Qt qtbase\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Qt qtbase \u003e=5.11.0\uff0c\u003c=5.11.3",
      "Qt qtbase \u003e=5.12.0\uff0c\u003c5.12.5"
    ]
  },
  "referenceLink": "https://codereview.qt-project.org/c/qt/qtbase/+/271889\r\nhttps://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784\r\nhttps://www.debian.org/security/2019/dsa-4556\r\nhttps://www.auscert.org.au/bulletins/ESB-2019.4054/",
  "serverity": "\u4e2d",
  "submitTime": "2019-11-04",
  "title": "Qt qtbase\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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