cnvd-2020-16645
Vulnerability from cnvd
Title
Dovecot内存破坏漏洞
Description
Dovecot是一款开源的基于类Linux/UNIX系统的IMAP和POP3邮件服务器。 Dovecot 2.3.9版本及之后版本（2.3.9.3版本已修复）中存在安全漏洞，该漏洞源于submission-login和lmtp中的lib-smtp错误的处理了截断的UTF-8数据。攻击者可利用该漏洞造成拒绝服务（无限循环）。
Severity
低
Patch Name
Dovecot内存破坏漏洞的补丁
Patch Description
Dovecot是一款开源的基于类Linux/UNIX系统的IMAP和POP3邮件服务器。 Dovecot 2.3.9版本及之后版本（2.3.9.3版本已修复）中存在安全漏洞，该漏洞源于submission-login和lmtp中的lib-smtp错误的处理了截断的UTF-8数据。攻击者可利用该漏洞造成拒绝服务（无限循环）。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://dovecot.org/security

Reference
http://www.openwall.com/lists/oss-security/2020/02/12/1
Impacted products
Name
Dovecot Dovecot >2.3.9
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7046",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7046"
    }
  },
  "description": "Dovecot\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u7c7bLinux/UNIX\u7cfb\u7edf\u7684IMAP\u548cPOP3\u90ae\u4ef6\u670d\u52a1\u5668\u3002\n\nDovecot 2.3.9\u7248\u672c\u53ca\u4e4b\u540e\u7248\u672c\uff082.3.9.3\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8esubmission-login\u548clmtp\u4e2d\u7684lib-smtp\u9519\u8bef\u7684\u5904\u7406\u4e86\u622a\u65ad\u7684UTF-8\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\uff09\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0:\r\nhttps://dovecot.org/security",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-16645",
  "openTime": "2020-03-10",
  "patchDescription": "Dovecot\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u57fa\u4e8e\u7c7bLinux/UNIX\u7cfb\u7edf\u7684IMAP\u548cPOP3\u90ae\u4ef6\u670d\u52a1\u5668\u3002\r\n\r\nDovecot 2.3.9\u7248\u672c\u53ca\u4e4b\u540e\u7248\u672c\uff082.3.9.3\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8esubmission-login\u548clmtp\u4e2d\u7684lib-smtp\u9519\u8bef\u7684\u5904\u7406\u4e86\u622a\u65ad\u7684UTF-8\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u65e0\u9650\u5faa\u73af\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": "Dovecot\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dovecot Dovecot \u003e2.3.9"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2020/02/12/1",
  "serverity": "\u4f4e",
  "submitTime": "2020-03-09",
  "title": "Dovecot\u5185\u5b58\u7834\u574f\u6f0f\u6d1e"
}


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