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CVE-2020-24386 (GCVE-0-2020-24386)

Vulnerability from cvelistv5 – Published: 2021-01-04 16:25 – Updated: 2024-08-04 15:12
VLAI
Summary
An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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Advisory\"]},{\"url\":\"https://doc.dovecot.org/configuration_manual/hibernation/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"https://dovecot.org/security\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202101-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4825\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T16:17:16+00:00",
      "cve": "CVE-2020-24386",
      "id": "CVE-2020-24386",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:fixed": "96",
      "product_status:known_affected": "19",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "dovecot: IMAP hibernation function allows mail access",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-24386.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-13T23:59:07Z",
      "cve": "CVE-2020-24386",
      "id": "CVE-2020-24386",
      "initial_release_date": "2023-02-15T03:54:28Z",
      "product_status:recommended": "573",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-24386",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-24386.json",
      "version": "21"
    }
  }
}



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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.