{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43399 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43399 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43399 is a high-severity memory corruption vulnerability in n/a, published on 8 Dec 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-2021-43399 and fix it if it is affected.\n\nWhat it is: CVE-2021-43399 is a high-severity memory corruption vulnerability in n/a, published on 8 Dec 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-2021-43399 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-43399/ (Markdown: https://insights.sbomify.com/CVE-2021-43399/index.md)","id":"CVE-2021-43399","markdown":"https://insights.sbomify.com/CVE-2021-43399/index.md","name":"CVE-2021-43399","record":{"aliases":["GHSA-vrp3-rwcp-4q77"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"YubiHSM2 library","requires_auth":"none","summary":"Improper length validation in the YubiHSM2 library allows attackers to trigger memory corruption via crafted SSH signing requests or data operations.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"yubihsm_2_software_development_kit","vendor":"yubico"}],"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-787","name":"Out-of-bounds Write"}],"description":"The Yubico YubiHSM YubiHSM2 library 2021.08, included in the yubihsm-shell project, does not properly validate the length of some operations including SSH signing requests, and some data operations received from a YubiHSM 2 device.","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":"Memory corruption in n/a","id":"CVE-2021-43399","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Use after free in n/a","id":"CVE-2021-43400"},"packages":[],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2021-43398"},"products":["n/a"],"published":"2021-12-08","related":[],"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":"2024-08-04","vendors":["n/a"]},"summary":"Improper length validation in the YubiHSM2 library allows attackers to trigger memory corruption via crafted SSH signing requests or data operations.","url":"https://insights.sbomify.com/CVE-2021-43399/"}