WID-SEC-W-2024-1867
Vulnerability from csaf_certbund - Published: 2024-08-15 22:00 - Updated: 2025-02-02 23:00Summary
Dovecot: Mehrere Schwachstellen ermöglichen Denial of Service
Severity
Mittel
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 Angreifer kann mehrere Schwachstellen in Dovecot ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
Es besteht eine Schwachstelle in Dovecot. Dieser Fehler besteht im IMAP-Serveaufgrund der ineffizienten Verarbeitung einer großen Anzahl von Adress-Headern, was zu einer übermäßigen CPU-Intensität führen kann. Ein entfernter, authentisierter Angreifer kann diese Schwachstelle ausnutzen, indem er speziell gestaltete E-Mails sendet, um einen Denial-of-Service-Zustand zu erzeugen.
Affected products
Known affected
10 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
Amazon Linux 2
Amazon
|
cpe:/o:amazon:linux_2:-
|
— | |
|
Open Source Dovecot IMAP Server <2.3.21.1
Open Source / Dovecot
|
IMAP Server <2.3.21.1 | ||
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— | |
|
RESF Rocky Linux
RESF
|
cpe:/o:resf:rocky_linux:-
|
— | |
|
Fedora Linux
Fedora
|
cpe:/o:fedoraproject:fedora:-
|
— |
Es besteht eine Schwachstelle in Dovecot. Dieser Fehler besteht aufgrund fehlender Größenbeschränkungen für den full_value-Puffer bei der Verarbeitung sehr großer Header, was zu einer übermäßigen Speichernutzung während des Parsens führt. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.
Affected products
Known affected
10 products, the same list as for
CVE-2024-23184
References
20 references
{
"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 Angreifer kann mehrere Schwachstellen in Dovecot ausnutzen, um einen Denial of Service Angriff durchzuf\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-2024-1867 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1867.json"
},
{
"category": "self",
"summary": "WID-SEC-2024-1867 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1867"
},
{
"category": "external",
"summary": "OSS Security Mailing List vom 2024-08-15",
"url": "https://www.openwall.com/lists/oss-security/2024/08/15/3"
},
{
"category": "external",
"summary": "OSS Security Mailing List vom 2024-08-15",
"url": "https://www.openwall.com/lists/oss-security/2024/08/15/4"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2024-BA5BB9F63A vom 2024-08-19",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2024-ba5bb9f63a"
},
{
"category": "external",
"summary": "Fedora Security Advisory FEDORA-2024-E23E8A3F1E vom 2024-08-19",
"url": "https://bodhi.fedoraproject.org/updates/FEDORA-2024-e23e8a3f1e"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-5752 vom 2024-08-21",
"url": "https://lists.debian.org/debian-security-announce/2024/msg00165.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-6982-1 vom 2024-09-02",
"url": "https://ubuntu.com/security/notices/USN-6982-1"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3860 vom 2024-09-02",
"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00002.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2024:3118-1 vom 2024-09-03",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-September/019347.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:6465 vom 2024-09-09",
"url": "https://access.redhat.com/errata/RHSA-2024:6465"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:6529 vom 2024-09-10",
"url": "https://access.redhat.com/errata/RHSA-2024:6529"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2024-6529 vom 2024-09-10",
"url": "https://linux.oracle.com/errata/ELSA-2024-6529.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-7013-1 vom 2024-09-16",
"url": "https://ubuntu.com/security/notices/USN-7013-1"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2024:6529 vom 2024-09-17",
"url": "https://errata.build.resf.org/RLSA-2024:6529"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2024:6973 vom 2024-09-24",
"url": "https://access.redhat.com/errata/RHSA-2024:6973"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2024-6973 vom 2024-09-25",
"url": "https://linux.oracle.com/errata/ELSA-2024-6973.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2024:6973 vom 2024-09-30",
"url": "https://errata.build.resf.org/RLSA-2024:6973"
},
{
"category": "external",
"summary": "Amazon Linux Security Advisory ALAS-2024-2719 vom 2024-12-20",
"url": "https://alas.aws.amazon.com/AL2/ALAS-2024-2719.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 erm\u00f6glichen Denial of Service",
"tracking": {
"current_release_date": "2025-02-02T23:00:00.000+00:00",
"generator": {
"date": "2025-02-03T09:07:03.091+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.10"
}
},
"id": "WID-SEC-W-2024-1867",
"initial_release_date": "2024-08-15T22:00:00.000+00:00",
"revision_history": [
{
"date": "2024-08-15T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2024-08-19T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Red Hat und Fedora aufgenommen"
},
{
"date": "2024-08-20T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2024-09-01T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2024-09-02T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2024-09-03T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2024-09-08T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2024-09-10T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2024-09-16T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Ubuntu und Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2024-09-23T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2024-09-24T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2024-09-30T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2024-12-19T23:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Amazon aufgenommen"
},
{
"date": "2025-02-02T23:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von openSUSE aufgenommen"
}
],
"status": "final",
"version": "14"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Amazon Linux 2",
"product": {
"name": "Amazon Linux 2",
"product_id": "398363",
"product_identification_helper": {
"cpe": "cpe:/o:amazon:linux_2:-"
}
}
}
],
"category": "vendor",
"name": "Amazon"
},
{
"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": "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": "IMAP Server \u003c2.3.21.1",
"product": {
"name": "Open Source Dovecot IMAP Server \u003c2.3.21.1",
"product_id": "T036941"
}
},
{
"category": "product_version",
"name": "IMAP Server 2.3.21.1",
"product": {
"name": "Open Source Dovecot IMAP Server 2.3.21.1",
"product_id": "T036941-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:dovecot:dovecot:imap_server__2.3.21.1"
}
}
}
],
"category": "product_name",
"name": "Dovecot"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T004914",
"product_identification_helper": {
"cpe": "cpe:/o:oracle:linux:-"
}
}
}
],
"category": "vendor",
"name": "Oracle"
},
{
"branches": [
{
"category": "product_name",
"name": "RESF Rocky Linux",
"product": {
"name": "RESF Rocky Linux",
"product_id": "T032255",
"product_identification_helper": {
"cpe": "cpe:/o:resf:rocky_linux:-"
}
}
}
],
"category": "vendor",
"name": "RESF"
},
{
"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-2024-23184",
"notes": [
{
"category": "description",
"text": "Es besteht eine Schwachstelle in Dovecot. Dieser Fehler besteht im IMAP-Serveaufgrund der ineffizienten Verarbeitung einer gro\u00dfen Anzahl von Adress-Headern, was zu einer \u00fcberm\u00e4\u00dfigen CPU-Intensit\u00e4t f\u00fchren kann. Ein entfernter, authentisierter Angreifer kann diese Schwachstelle ausnutzen, indem er speziell gestaltete E-Mails sendet, um einen Denial-of-Service-Zustand zu erzeugen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T027843",
"398363",
"T036941",
"T004914",
"T032255",
"74185"
]
},
"release_date": "2024-08-15T22:00:00.000+00:00",
"title": "CVE-2024-23184"
},
{
"cve": "CVE-2024-23185",
"notes": [
{
"category": "description",
"text": "Es besteht eine Schwachstelle in Dovecot. Dieser Fehler besteht aufgrund fehlender Gr\u00f6\u00dfenbeschr\u00e4nkungen f\u00fcr den full_value-Puffer bei der Verarbeitung sehr gro\u00dfer Header, was zu einer \u00fcberm\u00e4\u00dfigen Speichernutzung w\u00e4hrend des Parsens f\u00fchrt. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen."
}
],
"product_status": {
"known_affected": [
"2951",
"T002207",
"67646",
"T000126",
"T027843",
"398363",
"T036941",
"T004914",
"T032255",
"74185"
]
},
"release_date": "2024-08-15T22:00:00.000+00:00",
"title": "CVE-2024-23185"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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