{"answers":{"affected":"2 open source packages ship an affected version, including org.keycloak:keycloak-model-infinispan. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-3637 in the wild and no public exploit code.","fix":"Upgrade org.keycloak:keycloak-model-infinispan to 14.0.0 or later.","what":"CVE-2021-3637 is a high-severity denial of service vulnerability in Redhat Keycloak, published on 9 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3637 and fix it if it is affected.\n\nWhat it is: CVE-2021-3637 is a high-severity denial of service vulnerability in Redhat Keycloak, published on 9 Jul 2021. 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-2021-3637 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-model-infinispan (Maven): affected all versions; fixed in 14.0.0\n- org.keycloak:keycloak-model-infinispan (Maven): affected all versions; fixed in 14.0.0\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-2021-3637/ (Markdown: https://insights.sbomify.com/CVE-2021-3637/index.md)","id":"CVE-2021-3637","markdown":"https://insights.sbomify.com/CVE-2021-3637/index.md","name":"CVE-2021-3637","record":{"aliases":["GHSA-2vp8-jv5v-6qh6"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity server","requires_auth":"none","summary":"Attackers can cause a denial of service by triggering unbounded growth of authentication sessions in Keycloak's Infinispan model.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"keycloak","vendor":"redhat"},{"product":"single_sign-on","vendor":"redhat"}],"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-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.","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":"Allocation of resources without limits or throttling in keycloak-model-infinispan","id":"CVE-2021-3637","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"redhat:keycloak","products":["redhat:keycloak","redhat:single_sign-on"],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Memory corruption in QEMU","id":"CVE-2021-3638"},"packages":[{"ecosystem":"Maven","fixed":["14.0.0"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-model-infinispan","purl":null,"source":"GHSA-2vp8-jv5v-6qh6"},{"ecosystem":"Maven","fixed":["14.0.0"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-model-infinispan","purl":"pkg:maven/org.keycloak/keycloak-model-infinispan","source":"GHSA-2vp8-jv5v-6qh6"}],"prev":{"headline":"Security feature bypass in openshift","id":"CVE-2021-3636"},"products":["keycloak-model-infinispan"],"published":"2021-07-09","related":[{"cvss_score":10,"headline":"Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC","id":"CVE-2022-4361","kev_date_added":null,"published":"2023-07-07"},{"cvss_score":9.8,"headline":"Keycloak vulnerable to privilege escalation on Token Exchange feature","id":"CVE-2022-1245","kev_date_added":null,"published":"2022-07-07"},{"cvss_score":9.6,"headline":"keycloak Self Stored Cross-site Scripting vulnerability","id":"CVE-2021-20195","kev_date_added":null,"published":"2021-05-28"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14910","kev_date_added":null,"published":"2019-12-05"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14909","kev_date_added":null,"published":"2019-12-04"},{"cvss_score":9.1,"headline":"Keycloak vulnerable to path traversal via double URL encoding","id":"CVE-2022-3782","kev_date_added":null,"published":"2023-01-11"},{"cvss_score":9.1,"headline":"keycloak vulnerable to unauthorized login via mail server setup","id":"CVE-2019-14837","kev_date_added":null,"published":"2020-01-07"}],"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":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can cause a denial of service by triggering unbounded growth of authentication sessions in Keycloak's Infinispan model.","url":"https://insights.sbomify.com/CVE-2021-3637/"}