{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43412 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43412 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43412 is a high-severity use after free vulnerability in n/a, published on 7 Nov 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-2021-43412 and fix it if it is affected.\n\nWhat it is: CVE-2021-43412 is a high-severity use after free vulnerability in n/a, published on 7 Nov 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-2021-43412 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-2021-43412/ (Markdown: https://insights.sbomify.com/CVE-2021-43412/index.md)","id":"CVE-2021-43412","markdown":"https://insights.sbomify.com/CVE-2021-43412/index.md","name":"CVE-2021-43412","record":{"aliases":["GHSA-x9rv-39rr-f53c"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU Hurd OS","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in GNU Hurd allows local attackers to escalate privileges to root by sending fake notification messages.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"hurd","vendor":"gnu"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free. This can be exploited for local privilege escalation to get full root access.","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":"Use after free in n/a","id":"CVE-2021-43412","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Privilege escalation in n/a","id":"CVE-2021-43413"},"packages":[],"prev":{"headline":"Race condition in n/a","id":"CVE-2021-43411"},"products":["n/a"],"published":"2021-11-07","related":[{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2021-43413","kev_date_added":null,"published":"2021-11-07"},{"cvss_score":7.5,"headline":"Race condition in n/a","id":"CVE-2021-43411","kev_date_added":null,"published":"2021-11-07"},{"cvss_score":7,"headline":"Auth bypass in n/a","id":"CVE-2021-43414","kev_date_added":null,"published":"2021-11-07"}],"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":"A use-after-free vulnerability in GNU Hurd allows local attackers to escalate privileges to root by sending fake notification messages.","url":"https://insights.sbomify.com/CVE-2021-43412/"}