{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-3569 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-3569 is a medium-severity memory corruption vulnerability in Redhat Enterprise Linux, published on 3 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3569 and fix it if it is affected.\n\nWhat it is: CVE-2021-3569 is a medium-severity memory corruption vulnerability in Redhat Enterprise Linux, published on 3 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-3569 in the wild and no public exploit code.\n\nAffected product: Redhat Enterprise Linux. 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-2021-3569/ (Markdown: https://insights.sbomify.com/CVE-2021-3569/index.md)","id":"CVE-2021-3569","markdown":"https://insights.sbomify.com/CVE-2021-3569/index.md","name":"CVE-2021-3569","record":{"aliases":["DEBIAN-CVE-2021-3569","GHSA-ppc8-jm88-74j3"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"TPM emulation library","requires_auth":"low_privilege","summary":"A stack corruption bug in libtpms during RSA decryption causes a SIGBUS and terminates swtpm, leading to denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"libtpms","vendor":"libtpms_project"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad memory access) and termination of swtpm. The highest threat from this vulnerability is to system availability.","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":"Memory corruption in libtpms","id":"CVE-2021-3569","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in linuxptp","id":"CVE-2021-3570"},"packages":[],"prev":{"headline":"Security feature bypass in caribou","id":"CVE-2021-3567"},"products":["libtpms"],"published":"2021-06-03","related":[{"cvss_score":5.9,"headline":"Libtpms contains a possible out-of-bound access and abort due to HMAC signing issue","id":"CVE-2025-49133","kev_date_added":null,"published":"2025-06-10"},{"cvss_score":5.5,"headline":"libtpms returns wrong initialization vector when certain symmetric ciphers are used","id":"CVE-2026-21444","kev_date_added":null,"published":"2026-01-02"}],"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":"A stack corruption bug in libtpms during RSA decryption causes a SIGBUS and terminates swtpm, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2021-3569/"}