{"answers":{"affected":"4 open source packages ship an affected version, including org.apache.mina:mina-core. It affects 9 products.","exploited":"There is no known exploitation of CVE-2021-41973 in the wild and no public exploit code.","fix":"Upgrade org.apache.mina:mina-core to a fixed version for your release line: 2.0.22 or 2.1.5.","what":"CVE-2021-41973 is a medium-severity denial of service vulnerability in Oracle Flexcube Universal Banking, published on 1 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-41973 and fix it if it is affected.\n\nWhat it is: CVE-2021-41973 is a medium-severity denial of service vulnerability in Oracle Flexcube Universal Banking, published on 1 Nov 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-41973 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.mina:mina-core (Maven): affected all versions; fixed in 2.0.22\n- org.apache.mina:mina-core (Maven): affected all versions; fixed in 2.0.22\n- org.apache.mina:mina-core (Maven): affected from 2.1.0; fixed in 2.1.5\n- org.apache.mina:mina-core (Maven): affected from 2.1.0; fixed in 2.1.5\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-2021-41973/ (Markdown: https://insights.sbomify.com/CVE-2021-41973/index.md)","id":"CVE-2021-41973","markdown":"https://insights.sbomify.com/CVE-2021-41973/index.md","name":"CVE-2021-41973","record":{"aliases":["CLEANSTART-2026-YP61169","DEBIAN-CVE-2021-41973","GHSA-6mcm-j9cj-3vc3","OESA-2021-1435","UBUNTU-CVE-2021-41973"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java networking library","requires_auth":"none","summary":"A malformed HTTP request can cause the Apache MINA HTTP Header decoder to loop indefinitely, leading to a denial of service.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"mina","vendor":"apache"},{"product":"banking_payments","vendor":"oracle"},{"product":"banking_trade_finance_process_management","vendor":"oracle"},{"product":"banking_treasury_management","vendor":"oracle"},{"product":"communications_cloud_native_core_console","vendor":"oracle"},{"product":"customer_management_and_segmentation_foundation","vendor":"oracle"},{"product":"flexcube_universal_banking","vendor":"oracle"},{"product":"fusion_middleware_common_libraries_and_tools","vendor":"oracle"},{"product":"oss_support_tools","vendor":"oracle"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"In Apache MINA, a specifically crafted, malformed HTTP request may cause the HTTP Header decoder to loop indefinitely. The decoder assumed that the HTTP Header begins at the beginning of the buffer and loops if there is more data than expected. Please update MINA to 2.1.5 or greater.","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":"Apache MINA HTTP listener DOS","id":"CVE-2021-41973","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"oracle:flexcube_universal_banking","products":["oracle:flexcube_universal_banking"],"type":"denial_of_service","year":"2021"},"n_packages":4,"n_references":4,"next":{"headline":"Tad Book3 - Improper Authorization","id":"CVE-2021-41974"},"packages":[{"ecosystem":"Maven","fixed":["2.0.22"],"introduced":["0"],"last_affected":[],"package":"org.apache.mina:mina-core","purl":null,"source":"GHSA-6mcm-j9cj-3vc3"},{"ecosystem":"Maven","fixed":["2.0.22"],"introduced":["0"],"last_affected":[],"package":"org.apache.mina:mina-core","purl":"pkg:maven/org.apache.mina/mina-core","source":"GHSA-6mcm-j9cj-3vc3"},{"ecosystem":"Maven","fixed":["2.1.5"],"introduced":["2.1.0"],"last_affected":[],"package":"org.apache.mina:mina-core","purl":null,"source":"GHSA-6mcm-j9cj-3vc3"},{"ecosystem":"Maven","fixed":["2.1.5"],"introduced":["2.1.0"],"last_affected":[],"package":"org.apache.mina:mina-core","purl":"pkg:maven/org.apache.mina/mina-core","source":"GHSA-6mcm-j9cj-3vc3"}],"prev":{"headline":"Credentials leak","id":"CVE-2021-41972"},"products":["Apache MINA"],"published":"2021-11-01","related":[{"cvss_score":10,"headline":"Apache MINA: MINA applications using unbounded deserialization may allow RCE","id":"CVE-2024-52046","kev_date_added":null,"published":"2024-12-25"},{"cvss_score":9.8,"headline":"Apache MINA: Critical Deserialization Allow-list Bypass via resolveProxyClass - ZDRES-232","id":"CVE-2026-47065","kev_date_added":null,"published":"2026-06-03"},{"cvss_score":9.8,"headline":"Apache MINA: CWE-502 Deserialization of Untrusted Data (take 2)","id":"CVE-2026-42778","kev_date_added":null,"published":"2026-05-01"},{"cvss_score":9.8,"headline":"Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41635 Incomplete Fix)","id":"CVE-2026-42779","kev_date_added":null,"published":"2026-05-01"},{"cvss_score":9.8,"headline":"Apache MINA: CWE-502 Deserialization of Untrusted Data","id":"CVE-2026-41409","kev_date_added":null,"published":"2026-04-27"},{"cvss_score":9.8,"headline":"Apache MINA vulnerable to Deserialization of Untrusted Data","id":"CVE-2026-41635","kev_date_added":null,"published":"2026-04-27"},{"cvss_score":7.5,"headline":"Apache MINA SSLFilter security Issue","id":"CVE-2019-0231","kev_date_added":null,"published":"2019-10-01"}],"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":["Apache Software Foundation"]},"summary":"A malformed HTTP request can cause the Apache MINA HTTP Header decoder to loop indefinitely, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2021-41973/"}