cnvd-2017-31692
Vulnerability from cnvd
Title
libzip '_zip_read_eocd64'函数拒绝服务漏洞
Description
libzip是软件开发者Dieter Baron和Thomas Klausner共同研发的一个用于读取、创建和修改zip压缩包的C库。 libzip 1.3.0之前的版本中的zip_open.c文件的'_zip_read_eocd64'函数存在安全漏洞。远程攻击者可借助特制的ZIP归档文件利用该漏洞造成拒绝服务（zip_dirent.c文件中的‘_zip_cdir_grow’函数内存分配失败）。
Severity
中
Patch Name
libzip '_zip_read_eocd64'函数拒绝服务漏洞的补丁
Patch Description
libzip是软件开发者Dieter Baron和Thomas Klausner共同研发的一个用于读取、创建和修改zip压缩包的C库。 libzip 1.3.0之前的版本中的zip_open.c文件的'_zip_read_eocd64'函数存在安全漏洞。远程攻击者可借助特制的ZIP归档文件利用该漏洞造成拒绝服务（zip_dirent.c文件中的‘_zip_cdir_grow’函数内存分配失败）。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://github.com/nih-at/libzip/commit/9b46957ec98d85a572e9ef98301247f39338a3b5

Reference
https://blogs.gentoo.org/ago/2017/09/01/libzip-memory-allocation-failure-in-_zip_cdir_grow-zip_dirent-c/
Impacted products
Name
libzip libzip <1.3.0
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-14107"
    }
  },
  "description": "libzip\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Dieter Baron\u548cThomas Klausner\u5171\u540c\u7814\u53d1\u7684\u4e00\u4e2a\u7528\u4e8e\u8bfb\u53d6\u3001\u521b\u5efa\u548c\u4fee\u6539zip\u538b\u7f29\u5305\u7684C\u5e93\u3002\r\n\r\nlibzip 1.3.0\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684zip_open.c\u6587\u4ef6\u7684\u0027_zip_read_eocd64\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684ZIP\u5f52\u6863\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08zip_dirent.c\u6587\u4ef6\u4e2d\u7684\u2018_zip_cdir_grow\u2019\u51fd\u6570\u5185\u5b58\u5206\u914d\u5931\u8d25\uff09\u3002",
  "discovererName": "Agostino Sarubbo of Gentoo",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/nih-at/libzip/commit/9b46957ec98d85a572e9ef98301247f39338a3b5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-31692",
  "openTime": "2017-10-27",
  "patchDescription": "libzip\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Dieter Baron\u548cThomas Klausner\u5171\u540c\u7814\u53d1\u7684\u4e00\u4e2a\u7528\u4e8e\u8bfb\u53d6\u3001\u521b\u5efa\u548c\u4fee\u6539zip\u538b\u7f29\u5305\u7684C\u5e93\u3002\r\n\r\nlibzip 1.3.0\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684zip_open.c\u6587\u4ef6\u7684\u0027_zip_read_eocd64\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684ZIP\u5f52\u6863\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08zip_dirent.c\u6587\u4ef6\u4e2d\u7684\u2018_zip_cdir_grow\u2019\u51fd\u6570\u5185\u5b58\u5206\u914d\u5931\u8d25\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": "libzip \u0027_zip_read_eocd64\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libzip libzip \u003c1.3.0"
  },
  "referenceLink": "https://blogs.gentoo.org/ago/2017/09/01/libzip-memory-allocation-failure-in-_zip_cdir_grow-zip_dirent-c/",
  "serverity": "\u4e2d",
  "submitTime": "2017-09-07",
  "title": "libzip \u0027_zip_read_eocd64\u0027\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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