ubuntu-cve-2013-6171
Vulnerability from osv_ubuntu
Published
2013-12-09 00:00
Modified
2025-07-16 04:50
Summary
Details

checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.

Severity
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "dovecot-core",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-dbg",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-dev",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-gssapi",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-imapd",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-ldap",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-lmtpd",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-managesieved",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-mysql",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-pgsql",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-pop3d",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-sieve",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-solr",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "dovecot-sqlite",
            "binary_version": "1:2.2.9-1ubuntu2"
          },
          {
            "binary_name": "mail-stack-delivery",
            "binary_version": "1:2.2.9-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "dovecot",
        "purl": "pkg:deb/ubuntu/dovecot@1:2.2.9-1ubuntu2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.2.9-1ubuntu2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.1.7-7ubuntu3",
        "1:2.2.9-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "checkpassword-reply in Dovecot before 2.2.7 performs setuid operations to a user who is authenticating, which allows local users to bypass authentication and access virtual email accounts by attaching to the process and using a restricted file descriptor to modify account information in the response to the dovecot-auth server.",
  "id": "UBUNTU-CVE-2013-6171",
  "modified": "2025-07-16T04:50:20Z",
  "published": "2013-12-09T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2013-6171"
    },
    {
      "type": "REPORT",
      "url": "http://www.dovecot.org/list/dovecot-news/2013-November/000264.html"
    },
    {
      "type": "REPORT",
      "url": "http://wiki2.dovecot.org/AuthDatabase/CheckPassword#Security"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3556-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2013-6171"
    }
  ],
  "related": [
    "USN-3556-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2013-6171"
  ],
  "withdrawn": "2025-07-18T16:42:56Z"
}



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