cnvd-2018-21505
Vulnerability from cnvd
Title
elfutils拒绝服务漏洞（CNVD-2018-21505）
Description
elfutils是一套用于读取、创建和修改ELF二进制文件的实用程序和库的集合。 elfutils 0.174及之前版本中的libelf的‘elf_end’函数存在安全漏洞，该漏洞源于虽然eu-size用于处理ar文件中的ar文件，而在未能处理完所有的内部条目之前，size.c中的handle_ar就关闭了外部的ar文件。攻击者可借助特制的ELF文件利用该漏洞造成拒绝服务（应用程序崩溃）。
Severity
中
Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://sourceware.org/elfutils/

Reference
https://vuldb.com/?id.125822
Impacted products
Name
Elfutils Elfutils <=0.174
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-18520"
    }
  },
  "description": "elfutils\u662f\u4e00\u5957\u7528\u4e8e\u8bfb\u53d6\u3001\u521b\u5efa\u548c\u4fee\u6539ELF\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u5b9e\u7528\u7a0b\u5e8f\u548c\u5e93\u7684\u96c6\u5408\u3002\r\n\r\nelfutils 0.174\u53ca\u4e4b\u524d\u7248\u672c\u4e2d\u7684libelf\u7684\u2018elf_end\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u867d\u7136eu-size\u7528\u4e8e\u5904\u7406ar\u6587\u4ef6\u4e2d\u7684ar\u6587\u4ef6\uff0c\u800c\u5728\u672a\u80fd\u5904\u7406\u5b8c\u6240\u6709\u7684\u5185\u90e8\u6761\u76ee\u4e4b\u524d\uff0csize.c\u4e2d\u7684handle_ar\u5c31\u5173\u95ed\u4e86\u5916\u90e8\u7684ar\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684ELF\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff09\u3002",
  "discovererName": "unknown",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://sourceware.org/elfutils/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-21505",
  "openTime": "2018-10-23",
  "products": {
    "product": "Elfutils Elfutils \u003c=0.174"
  },
  "referenceLink": "https://vuldb.com/?id.125822",
  "serverity": "\u4e2d",
  "submitTime": "2018-10-23",
  "title": "elfutils\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-21505\uff09"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.