{"answers":{"affected":"2 open source packages ship an affected version, including org.eclipse.hono:hono-core. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-27217 in the wild and no public exploit code.","fix":"Upgrade org.eclipse.hono:hono-core to 1.4.3 or later.","what":"CVE-2020-27217 is a high-severity denial of service vulnerability in The Eclipse Foundation Eclipse Hono, published on 13 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-27217 and fix it if it is affected.\n\nWhat it is: CVE-2020-27217 is a high-severity denial of service vulnerability in The Eclipse Foundation Eclipse Hono, published on 13 Nov 2020. 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-2020-27217 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.eclipse.hono:hono-core (Maven): affected all versions; fixed in 1.4.3\n- org.eclipse.hono:hono-core (Maven): affected all versions; fixed in 1.4.3\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-2020-27217/ (Markdown: https://insights.sbomify.com/CVE-2020-27217/index.md)","id":"CVE-2020-27217","markdown":"https://insights.sbomify.com/CVE-2020-27217/index.md","name":"CVE-2020-27217","record":{"aliases":["GHSA-9f52-hpvw-v96w"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IoT messaging platform","requires_auth":"none","summary":"Attackers can cause denial of service in Eclipse Hono by sending oversized AMQP messages, leading to out-of-memory exceptions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"hono","vendor":"eclipse"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-1284","name":"Improper Validation of Specified Quantity in Input"}],"description":"In Eclipse Hono version 1.3.0 and 1.4.0 the AMQP protocol adapter does not verify the size of AMQP messages received from devices. In particular, a device may send messages that are bigger than the max-message-size that the protocol adapter has indicated during link establishment. While the AMQP 1.0 protocol explicitly disallows a peer to send such messages, a hand crafted AMQP 1.0 client could exploit this behavior in order to send a message of unlimited size to the adapter, eventually causing the adapter to fail with an out of memory exception.","ecosystems":["Maven"],"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":"Improper Validation of Specified Quantity in Input in Eclipse Hono","id":"CVE-2020-27217","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":2,"n_references":1,"next":{"headline":"Buffer not correctly recycled in Gzip Request inflation","id":"CVE-2020-27218"},"packages":[{"ecosystem":"Maven","fixed":["1.4.3"],"introduced":["0"],"last_affected":[],"package":"org.eclipse.hono:hono-core","purl":null,"source":"GHSA-9f52-hpvw-v96w"},{"ecosystem":"Maven","fixed":["1.4.3"],"introduced":["0"],"last_affected":[],"package":"org.eclipse.hono:hono-core","purl":"pkg:maven/org.eclipse.hono/hono-core","source":"GHSA-9f52-hpvw-v96w"}],"prev":{"headline":"Local Temp Directory Hijacking Vulnerability","id":"CVE-2020-27216"},"products":["Eclipse Hono"],"published":"2020-11-13","related":[{"cvss_score":8.8,"headline":"Missing authorization in Eclipse Hono","id":"CVE-2020-27220","kev_date_added":null,"published":"2021-01-14"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["The Eclipse Foundation"]},"summary":"Attackers can cause denial of service in Eclipse Hono by sending oversized AMQP messages, leading to out-of-memory exceptions.","url":"https://insights.sbomify.com/CVE-2020-27217/"}