ubuntu-cve-2019-19783
Vulnerability from osv_ubuntu
Published
2019-12-16 14:15
Modified
2026-04-22 07:39
Summary
Details

An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cyrus-admin",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-caldav",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-clients",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-common",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-imapd",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-murder",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-nntpd",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-pop3d",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "cyrus-replication",
            "binary_version": "2.5.10-3ubuntu1.1"
          },
          {
            "binary_name": "libcyrus-imap-perl",
            "binary_version": "2.5.10-3ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "cyrus-imapd",
        "purl": "pkg:deb/ubuntu/cyrus-imapd@2.5.10-3ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.10-3ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.5.10-3build1",
        "2.5.10-3build2",
        "2.5.10-3ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.",
  "id": "UBUNTU-CVE-2019-19783",
  "modified": "2026-04-22T07:39:13Z",
  "published": "2019-12-16T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19783"
    },
    {
      "type": "REPORT",
      "url": "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html#security-fixes"
    },
    {
      "type": "REPORT",
      "url": "https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-19783"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4566-1"
    }
  ],
  "related": [
    "USN-4566-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-19783"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.