Vulnerability-Lookup

WID-SEC-W-2025-2439

Vulnerability from csaf_certbund - Published: 2025-10-28 23:00 - Updated: 2025-12-10 23:00

Summary

Dovecot IMAP Server: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen und Offenlegung von Informationen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Dovecot ist ein Open Source IMAP und POP3 E-Mail Server.

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Dovecot ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen.

Betroffene Betriebssysteme

- Sonstiges - UNIX

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Dovecot ist ein Open Source IMAP und POP3 E-Mail Server.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Dovecot ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2025-2439 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2439.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-2439 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2439"
      },
      {
        "category": "external",
        "summary": "Dovecot CVE Notification vom 2025-10-28",
        "url": "https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/G3K5HMBKW6XOYNBXYV5GUM2GR6WPUD4M/"
      },
      {
        "category": "external",
        "summary": "Dovecot Releasenotes vom 2025-10-28",
        "url": "https://dovecot.org/mailman3/archives/list/dovecot@dovecot.org/thread/XTMMPVQ3QKQMYDZ3CZZCXPNHN7OXKS3L/"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2025-E491C93405 vom 2025-11-12",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2025-e491c93405"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2025-20113-1 vom 2025-11-28",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WXTY4FCNYFBT3JVKD4XRYHJIQG7CYBZF/"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2025:21159-1 vom 2025-12-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2025-December/023506.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Dovecot IMAP Server: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen und Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2025-12-10T23:00:00.000+00:00",
      "generator": {
        "date": "2025-12-11T09:45:01.390+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2025-2439",
      "initial_release_date": "2025-10-28T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2025-10-28T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2025-11-02T23:00:00.000+00:00",
          "number": "2",
          "summary": "Referenz(en) aufgenommen: EUVD-2025-37318"
        },
        {
          "date": "2025-11-11T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2025-11-27T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von openSUSE aufgenommen"
        },
        {
          "date": "2025-12-10T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.4.2",
                "product": {
                  "name": "Open Source Dovecot \u003c2.4.2",
                  "product_id": "T048198"
                }
              },
              {
                "category": "product_version",
                "name": "2.4.2",
                "product": {
                  "name": "Open Source Dovecot 2.4.2",
                  "product_id": "T048198-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dovecot:dovecot:2.4.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Dovecot"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-30189",
      "product_status": {
        "known_affected": [
          "T002207",
          "T027843",
          "T048198",
          "74185"
        ]
      },
      "release_date": "2025-10-28T23:00:00.000+00:00",
      "title": "CVE-2025-30189"
    }
  ]
}

CVE-2025-30189 (GCVE-0-2025-30189)

Vulnerability from cvelistv5 – Published: 2025-10-31 09:02 – Updated: 2025-11-27 10:32

Summary

When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known.

Severity ?

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CWE

CWE-1250 - Improper Preservation of Consistency Between Independent Representations of Shared State

Assigner

References

URL

Tags

https://documentation.open-xchange.com/dovecot/se…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Open-Xchange GmbH	OX Dovecot Pro	Affected: 0 , ≤ 2.4.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T21:09:57.944Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://seclists.org/fulldisclosure/2025/Oct/29"
          },
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/10/29/4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-30189",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-31T18:29:20.964859Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-31T18:37:37.432Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "core"
          ],
          "product": "OX Dovecot Pro",
          "vendor": "Open-Xchange GmbH",
          "versions": [
            {
              "lessThanOrEqual": "2.4.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When cache is enabled, some passdb/userdb drivers incorrectly cache all users with same cache key, causing wrong cached information to be used for these users. After cached login, all subsequent logins are for same user. Install fixed version or disable caching either globally or for the impacted passdb/userdb drivers. No publicly available exploits are known."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1250",
              "description": "Improper Preservation of Consistency Between Independent Representations of Shared State",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-27T10:32:54.422Z",
        "orgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
        "shortName": "OX"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2025/oxdc-adv-2025-0001.json"
        }
      ],
      "source": {
        "defect": "DOV-7830",
        "discovery": "EXTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8ce71d90-2354-404b-a86e-bec2cc4e6981",
    "assignerShortName": "OX",
    "cveId": "CVE-2025-30189",
    "datePublished": "2025-10-31T09:02:33.273Z",
    "dateReserved": "2025-03-18T08:39:46.884Z",
    "dateUpdated": "2025-11-27T10:32:54.422Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

WID-SEC-W-2025-2439

CVE-2025-30189 (GCVE-0-2025-30189)

Tags

Sightings

Nomenclature