cnvd-2021-50106
Vulnerability from cnvd
Title
UnRar缓冲区溢出漏洞
Description
UnRar是一个可解压rar后缀文件的命令。 UnRar中存在缓冲区溢出漏洞，该漏洞源于Unpack：：Unpack5 和 CmdExtract：：ExtractCurrentFile 调用 Unpack：：CopyString 时未验证内存边界导致越界读写操作。目前没有详细的漏洞细节提供。
Severity
中
Patch Name
UnRar缓冲区溢出漏洞的补丁
Patch Description
UnRar是一个可解压rar后缀文件的命令。 UnRar中存在缓冲区溢出漏洞，该漏洞源于Unpack：：Unpack5 和 CmdExtract：：ExtractCurrentFile 调用 Unpack：：CopyString 时未验证内存边界导致越界读写操作。目前没有详细的漏洞细节提供。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，补丁获取链接： https://github.com/aawc/unrar/releases

Impacted products
Name
['UnRar UnRar 5.6.1.2', 'UnRar UnRar 5.6.1.3']
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-20006"
    }
  },
  "description": "UnRar\u662f\u4e00\u4e2a\u53ef\u89e3\u538brar\u540e\u7f00\u6587\u4ef6\u7684\u547d\u4ee4\u3002\n\nUnRar\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eUnpack\uff1a\uff1aUnpack5 \u548c CmdExtract\uff1a\uff1aExtractCurrentFile \u8c03\u7528 Unpack\uff1a\uff1aCopyString \u65f6\u672a\u9a8c\u8bc1\u5185\u5b58\u8fb9\u754c\u5bfc\u81f4\u8d8a\u754c\u8bfb\u5199\u64cd\u4f5c\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/aawc/unrar/releases",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-50106",
  "openTime": "2021-07-13",
  "patchDescription": "UnRar\u662f\u4e00\u4e2a\u53ef\u89e3\u538brar\u540e\u7f00\u6587\u4ef6\u7684\u547d\u4ee4\u3002\r\n\r\nUnRar\u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eUnpack\uff1a\uff1aUnpack5 \u548c CmdExtract\uff1a\uff1aExtractCurrentFile \u8c03\u7528 Unpack\uff1a\uff1aCopyString \u65f6\u672a\u9a8c\u8bc1\u5185\u5b58\u8fb9\u754c\u5bfc\u81f4\u8d8a\u754c\u8bfb\u5199\u64cd\u4f5c\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "UnRar\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "UnRar UnRar 5.6.1.2",
      "UnRar UnRar 5.6.1.3"
    ]
  },
  "serverity": "\u4e2d",
  "submitTime": "2021-07-02",
  "title": "UnRar\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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