cnvd-2019-40139
Vulnerability from cnvd
Title
LibSass空指针解引用漏洞
Description
LibSass是Sass引擎的C/C++端口。 LibSass 3.5.5中的SharedPtr.hpp中的Sass::Selector_List::populate_extends函数存在空指针解引用漏洞。攻击者可利用该漏洞通过特制sass输入文件导致拒绝服务（应用程序崩溃）。
Severity
中
Patch Name
LibSass空指针解引用漏洞的补丁
Patch Description
LibSass是Sass引擎的C/C++端口。 LibSass 3.5.5中的SharedPtr.hpp中的Sass::Selector_List::populate_extends函数存在空指针解引用漏洞。攻击者可利用该漏洞通过特制sass输入文件导致拒绝服务（应用程序崩溃）。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/sass/libsass/pull/2780/files

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-19797
Impacted products
Name
LibSass LibSass 3.5.5
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-19797"
    }
  },
  "description": "LibSass\u662fSass\u5f15\u64ce\u7684C/C++\u7aef\u53e3\u3002\n\nLibSass 3.5.5\u4e2d\u7684SharedPtr.hpp\u4e2d\u7684Sass::Selector_List::populate_extends\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u7279\u5236sass\u8f93\u5165\u6587\u4ef6\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/sass/libsass/pull/2780/files",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-40139",
  "openTime": "2019-11-12",
  "patchDescription": "LibSass\u662fSass\u5f15\u64ce\u7684C/C++\u7aef\u53e3\u3002\r\n\r\nLibSass 3.5.5\u4e2d\u7684SharedPtr.hpp\u4e2d\u7684Sass::Selector_List::populate_extends\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u7279\u5236sass\u8f93\u5165\u6587\u4ef6\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\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": "LibSass\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "LibSass LibSass 3.5.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-19797",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-03",
  "title": "LibSass\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}


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