WID-SEC-W-2025-0234

Vulnerability from csaf_certbund - Published: 2021-01-04 23:00 - Updated: 2025-02-02 23:00
Summary
Dovecot: Mehrere Schwachstellen

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, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Dovecot ausnutzen, um Sicherheitsvorkehrungen zu umgehen und um einen Denial of Service Zustand herbeizuführen.
Betroffene Betriebssysteme
- Linux
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Dovecot ausnutzen, um Sicherheitsvorkehrungen zu umgehen und um einen Denial of Service Zustand herbeizuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2025-0234 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2025-0234.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-0234 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0234"
      },
      {
        "category": "external",
        "summary": "Dovecot v2.3.13 released vom 2021-01-04",
        "url": "https://dovecot.org/pipermail/dovecot-news/2021-January/000448.html"
      },
      {
        "category": "external",
        "summary": "[Dovecot-news] CVE-2020-24386 vom 2021-01-04",
        "url": "https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html"
      },
      {
        "category": "external",
        "summary": "[Dovecot-news] CVE-2020-25275 vom 2021-01-04",
        "url": "https://dovecot.org/pipermail/dovecot-news/2021-January/000451.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-4825 vom 2021-01-04",
        "url": "https://www.debian.org/security/2021/dsa-4825"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0018-1 vom 2021-01-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-January/008134.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4674-1 vom 2021-01-04",
        "url": "https://ubuntu.com/security/notices/USN-4674-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-4674-2 vom 2021-01-04",
        "url": "https://ubuntu.com/security/notices/USN-4674-2"
      },
      {
        "category": "external",
        "summary": "ARCHLINUX Security Advisory ASA-202101-4 vom 2021-01-04",
        "url": "https://security.archlinux.org/ASA-202101-4/generate"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0027-1 vom 2021-01-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-January/008154.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0029-1 vom 2021-01-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-January/008153.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:0028-1 vom 2021-01-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-January/008152.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-2517 vom 2021-01-05",
        "url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00005.html"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202101-01 vom 2021-01-10",
        "url": "https://security.gentoo.org/glsa/202101-01"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2021:1887 vom 2021-05-18",
        "url": "https://access.redhat.com/errata/RHSA-2021:1887"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2892-1 vom 2021-09-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-August/009374.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2021:2891-1 vom 2021-09-01",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-August/009375.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2025:14715-1 vom 2025-01-31",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/KZSDCZ5LA6IHY7KXVSL6ULAJVP6OFT2M/"
      }
    ],
    "source_lang": "en-US",
    "title": "Dovecot: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2025-02-02T23:00:00.000+00:00",
      "generator": {
        "date": "2025-02-03T09:07:25.765+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.10"
        }
      },
      "id": "WID-SEC-W-2025-0234",
      "initial_release_date": "2021-01-04T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-01-04T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2021-01-05T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE und Debian aufgenommen"
        },
        {
          "date": "2021-01-06T23:00:00.000+00:00",
          "number": "3",
          "summary": "Referenz(en) aufgenommen: FEDORA-2021-364E2809B8"
        },
        {
          "date": "2021-01-07T23:00:00.000+00:00",
          "number": "4",
          "summary": "Referenz(en) aufgenommen: FEDORA-2021-154A1B4C19, FEDORA-2021-C90CB486F7"
        },
        {
          "date": "2021-01-10T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Gentoo aufgenommen"
        },
        {
          "date": "2021-05-18T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2021-08-31T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2025-02-02T23:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von openSUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "8"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Arch Linux",
            "product": {
              "name": "Open Source Arch Linux",
              "product_id": "T013312",
              "product_identification_helper": {
                "cpe": "cpe:/o:archlinux:archlinux:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.3.13",
                "product": {
                  "name": "Open Source Dovecot \u003c2.3.13",
                  "product_id": "T017982"
                }
              },
              {
                "category": "product_version",
                "name": "2.3.13",
                "product": {
                  "name": "Open Source Dovecot 2.3.13",
                  "product_id": "T017982-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dovecot:dovecot:2.3.13"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Dovecot"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "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"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-24386",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Dovecot, wenn \"IMAP Hibernation\" aktiviert ist. Ein authentisierter Angreifer kann durch speziell gestaltete IMAP Kommandos die Dateisystemstrukturen des Servers durchsuchen und Mails anderer Nutzer lesen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T017982",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "T013312",
          "T027843",
          "T012167"
        ]
      },
      "release_date": "2021-01-04T23:00:00.000+00:00",
      "title": "CVE-2020-24386"
    },
    {
      "cve": "CVE-2020-25275",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Dovecot bei der Verarbeitung von MIME-Strukturen in E-Mails. Ein entfernter, anonymer Angreifer kann durch das wiederholte Senden von speziell gestalteten E-Mails mit mehr als 10.000 MIME-Parts einen Denial of Service Zustand herbeif\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T017982",
          "2951",
          "T002207",
          "67646",
          "T000126",
          "T013312",
          "T027843",
          "T012167"
        ]
      },
      "release_date": "2021-01-04T23:00:00.000+00:00",
      "title": "CVE-2020-25275"
    }
  ]
}


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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.