{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38576 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-38576 is a high-severity denial of service vulnerability in EDK II, published on 3 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-38576 and fix it if it is affected.\n\nWhat it is: CVE-2021-38576 is a high-severity denial of service vulnerability in EDK II, published on 3 Jan 2022. 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-2021-38576 in the wild and no public exploit code.\n\nAffected product: EDK II. 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-2021-38576/ (Markdown: https://insights.sbomify.com/CVE-2021-38576/index.md)","id":"CVE-2021-38576","markdown":"https://insights.sbomify.com/CVE-2021-38576/index.md","name":"CVE-2021-38576","record":{"aliases":["DEBIAN-CVE-2021-38576","GHSA-h53v-fr53-7vvj","OESA-2022-1515","UBUNTU-CVE-2021-38576"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"EDK II firmware","requires_auth":"none","summary":"Attackers can permanently brick the TPM or cause system denial of service due to an empty Platform authorization value in EDK II firmware.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TianoCore","cpe":[{"product":"edk2","vendor":"tianocore"}],"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":[],"description":"A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.","ecosystems":[],"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 EDK II","id":"CVE-2021-38576","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":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-38577"},"packages":[],"prev":{"headline":"Memory corruption in EDK II","id":"CVE-2021-38575"},"products":["EDK II"],"published":"2022-01-03","related":[{"cvss_score":8.3,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45230","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":8.3,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45234","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":8.3,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45235","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":7.8,"headline":"Denial of service in EDK II","id":"CVE-2021-28210","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":7.8,"headline":"Null dereference in Tianocore EDK2","id":"CVE-2019-14584","kev_date_added":null,"published":"2021-06-03"},{"cvss_score":7.8,"headline":"Privilege escalation in Tianocore","id":"CVE-2017-5731","kev_date_added":null,"published":"2019-10-28"},{"cvss_score":7.5,"headline":"Infinite loop in EDK II Network Package","id":"CVE-2023-45232","kev_date_added":null,"published":"2024-01-16"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2025-11-03","vendors":["n/a"]},"summary":"Attackers can permanently brick the TPM or cause system denial of service due to an empty Platform authorization value in EDK II firmware.","url":"https://insights.sbomify.com/CVE-2021-38576/"}