{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-20718 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-20718 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 20 May 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-2021-20718 and fix it if it is affected.\n\nWhat it is: CVE-2021-20718 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 20 May 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-2021-20718 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. 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-2021-20718/ (Markdown: https://insights.sbomify.com/CVE-2021-20718/index.md)","id":"CVE-2021-20718","markdown":"https://insights.sbomify.com/CVE-2021-20718/index.md","name":"CVE-2021-20718","record":{"aliases":["AZL-7288","DEBIAN-CVE-2021-20718","MGASA-2021-0280","SUSE-SU-2021:1900-1","UBUNTU-CVE-2021-20718"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache OpenID Connect module","requires_auth":"none","summary":"A remote attacker can cause a denial-of-service condition in the mod_auth_openidc Apache module via unspecified vectors.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"mod_auth_openidc","vendor":"openidc"},{"product":"essbase","vendor":"oracle"}],"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-400","name":"Uncontrolled Resource Consumption"}],"description":"mod_auth_openidc 2.4.0 to 2.4.7 allows a remote attacker to cause a denial-of-service (DoS) condition via unspecified vectors.","ecosystems":["SUSE:Linux Enterprise Server 12 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 9"],"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 mod auth openidc","id":"CVE-2021-20718","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","oracle:essbase"],"type":"denial_of_service","year":"2021"},"n_packages":6,"n_references":6,"next":{"headline":"Command injection in RFNTPS","id":"CVE-2021-20719"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS","source":"SUSE-SU-2021:1900-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2021:1900-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2021:1900-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2021:1900-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2021:1900-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["2.4.0-3.14.1"],"introduced":["0"],"last_affected":[],"package":"apache2-mod_auth_openidc","purl":"pkg:rpm/suse/apache2-mod_auth_openidc\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2021:1900-1"}],"prev":{"headline":"EC-CUBE Cross-site scripting vulnerability","id":"CVE-2021-20717"},"products":["mod_auth_openidc"],"published":"2021-05-20","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":["ZmartZone"]},"summary":"A remote attacker can cause a denial-of-service condition in the mod_auth_openidc Apache module via unspecified vectors.","url":"https://insights.sbomify.com/CVE-2021-20718/"}