cnvd-2018-26766
Vulnerability from cnvd
Title
Poppler拒绝服务漏洞（CNVD-2018-26766）
Description
Poppler是一个用于生成PDF的C++类库，该库是从Xpdf（PDF阅读器）继承而来。 Poppler0.72.0版本中的XRef.cc文件的XRef::getEntry存在拒绝服务漏洞，该漏洞源于程序错误的处理了未分配的条目，远程攻击者可借助特制的PDF文档利用该漏洞造成拒绝服务（空指针逆向引用）。
Severity
中
Patch Name
Poppler拒绝服务漏洞（CNVD-2018-26766）的补丁
Patch Description
Poppler是一个用于生成PDF的C++类库，该库是从Xpdf（PDF阅读器）继承而来。 Poppler0.72.0版本中的XRef.cc文件的XRef::getEntry存在拒绝服务漏洞，该漏洞源于程序错误的处理了未分配的条目，远程攻击者可借助特制的PDF文档利用该漏洞造成拒绝服务（空指针逆向引用）。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

厂商已发布了漏洞修复程序，请及时关注更新： https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143

Reference
https://github.com/craftcms/cms/blob/master/CHANGELOG-v3.md https://github.com/phuctam/Server-Side-Template-Injection-in-CraftCMS-/issues/1
Impacted products
Name
Poppler Poppler 0.72.0
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-20481"
    }
  },
  "description": "Poppler\u662f\u4e00\u4e2a\u7528\u4e8e\u751f\u6210PDF\u7684C++\u7c7b\u5e93\uff0c\u8be5\u5e93\u662f\u4eceXpdf\uff08PDF\u9605\u8bfb\u5668\uff09\u7ee7\u627f\u800c\u6765\u3002\n\nPoppler0.72.0\u7248\u672c\u4e2d\u7684XRef.cc\u6587\u4ef6\u7684XRef::getEntry\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u9519\u8bef\u7684\u5904\u7406\u4e86\u672a\u5206\u914d\u7684\u6761\u76ee\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\u3002",
  "discovererName": "phuctam",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://gitlab.freedesktop.org/poppler/poppler/merge_requests/143",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-26766",
  "openTime": "2018-12-27",
  "patchDescription": "Poppler\u662f\u4e00\u4e2a\u7528\u4e8e\u751f\u6210PDF\u7684C++\u7c7b\u5e93\uff0c\u8be5\u5e93\u662f\u4eceXpdf\uff08PDF\u9605\u8bfb\u5668\uff09\u7ee7\u627f\u800c\u6765\u3002\r\n\r\nPoppler0.72.0\u7248\u672c\u4e2d\u7684XRef.cc\u6587\u4ef6\u7684XRef::getEntry\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u9519\u8bef\u7684\u5904\u7406\u4e86\u672a\u5206\u914d\u7684\u6761\u76ee\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684PDF\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\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": "Poppler\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-26766\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Poppler Poppler 0.72.0"
  },
  "referenceLink": "https://github.com/craftcms/cms/blob/master/CHANGELOG-v3.md\r\nhttps://github.com/phuctam/Server-Side-Template-Injection-in-CraftCMS-/issues/1",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-26",
  "title": "Poppler\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-26766\uff09"
}


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