{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2024-23185 in the wild and no public exploit code.","fix":"Change a configuration setting.","what":"CVE-2024-23185 is a high-severity denial of service vulnerability in Open-Xchange GmbH OX Dovecot Pro, published on 10 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-23185 and fix it if it is affected.\n\nWhat it is: CVE-2024-23185 is a high-severity denial of service vulnerability in Open-Xchange GmbH OX Dovecot Pro, published on 10 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-23185 in the wild and no public exploit code.\n\nAffected product: Open-Xchange GmbH OX Dovecot Pro. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-23185/ (Markdown: https://insights.sbomify.com/CVE-2024-23185/index.md)","id":"CVE-2024-23185","markdown":"https://insights.sbomify.com/CVE-2024-23185/index.md","name":"CVE-2024-23185","record":{"aliases":["ALPINE-CVE-2024-23185","AZL-48984","AZL-49027","CLSA-2025-1753987188","DEBIAN-CVE-2024-23185","GHSA-g9m4-c8qf-67qw","UBUNTU-CVE-2024-23185"],"analysis":{"component_type":"server_software","fix_type":"configuration_change","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Dovecot mail server","requires_auth":"none","summary":"Attackers can cause resource exhaustion via large headers, though MTA limits usually prevent remote DoS; self-DoS via APPEND is possible.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"OX","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Very large headers can cause resource exhaustion when parsing message. The message-parser normally reads reasonably sized chunks of the message. However, when it feeds them to message-header-parser, it starts building up \"full_value\" buffer out of the smaller chunks. The full_value buffer has no size limit, so large headers can cause large memory usage. It doesn't matter whether it's a single long header line, or a single header split into multiple lines. This bug exists in all Dovecot versions. Incoming mails typically have some size limits set by MTA, so even largest possible header size may still fit into Dovecot's vsz_limit. So attackers probably can't DoS a victim user this way. A user could APPEND larger mails though, allowing them to DoS themselves (although maybe cause some memory issues for the backend in general). One can implement restrictions on headers on MTA component preceding Dovecot. No publicly available exploits are known.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Denial of service in OX Dovecot Pro","id":"CVE-2024-23185","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2024"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in OX App Suite","id":"CVE-2024-23186"},"packages":[],"prev":{"headline":"Denial of service in OX Dovecot Pro","id":"CVE-2024-23184"},"products":["OX Dovecot Pro"],"published":"2024-09-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Open-Xchange GmbH"]},"summary":"Attackers can cause resource exhaustion via large headers, though MTA limits usually prevent remote DoS; self-DoS via APPEND is possible.","url":"https://insights.sbomify.com/CVE-2024-23185/"}