{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-22919 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-22919 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-22919 is a high-severity denial of service vulnerability in Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP, published on 5 Aug 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-2021-22919 and fix it if it is affected.\n\nWhat it is: CVE-2021-22919 is a high-severity denial of service vulnerability in Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP, published on 5 Aug 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-2021-22919 in the wild and no public exploit code.\n\nAffected product: Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP. 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-2021-22919/ (Markdown: https://insights.sbomify.com/CVE-2021-22919/index.md)","id":"CVE-2021-22919","markdown":"https://insights.sbomify.com/CVE-2021-22919/index.md","name":"CVE-2021-22919","record":{"aliases":["GHSA-8v5q-r6pr-xg3j"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Citrix ADC Gateway","requires_auth":"none","summary":"Attackers can exhaust disk space on Citrix ADC, Gateway, and SD-WAN appliances, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"application_delivery_controller_firmware","vendor":"citrix"},{"product":"gateway","vendor":"citrix"},{"product":"netscaler_gateway","vendor":"citrix"},{"product":"sd-wan_wanop","vendor":"citrix"}],"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 vulnerability has been discovered in Citrix ADC (formerly known as NetScaler ADC) and Citrix Gateway (formerly known as NetScaler Gateway), and Citrix SD-WAN WANOP Edition models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. These vulnerabilities, if exploited, could lead to the limited available disk space on the appliances being fully consumed.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP","id":"CVE-2021-22919","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in Citrix ADC, Citrix Gateway","id":"CVE-2021-22920"},"packages":[],"prev":{"headline":"Out-of-Bounds Read in Node.js","id":"CVE-2021-22918"},"products":["Citrix ADC, Citrix Gateway, Citrix SD-WAN WANOP"],"published":"2021-08-05","related":[{"cvss_score":9.8,"headline":"Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass","id":"CVE-2022-27518","kev_date_added":"2022-12-13","published":"2022-12-13"},{"cvss_score":9.8,"headline":"Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution","id":"CVE-2019-19781","kev_date_added":"2021-11-03","published":"2019-12-27"},{"cvss_score":6.5,"headline":"Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass","id":"CVE-2020-8193","kev_date_added":"2021-11-03","published":"2020-07-10"},{"cvss_score":6.5,"headline":"Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure","id":"CVE-2020-8195","kev_date_added":"2021-11-03","published":"2020-07-10"},{"cvss_score":4.3,"headline":"Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure","id":"CVE-2020-8196","kev_date_added":"2021-11-03","published":"2020-07-10"},{"cvss_score":9.8,"headline":"Unauthorized access to Gateway user capabilities","id":"CVE-2022-27510","kev_date_added":null,"published":"2022-11-08"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2019-18225","kev_date_added":null,"published":"2019-10-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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 exhaust disk space on Citrix ADC, Gateway, and SD-WAN appliances, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2021-22919/"}