{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-46243 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-46243 is a medium-severity vulnerability in Hdfgroup Hdf5, published on 21 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-46243 and fix it if it is affected.\n\nWhat it is: CVE-2021-46243 is a medium-severity vulnerability in Hdfgroup Hdf5, published on 21 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-46243 in the wild and no public exploit code.\n\nAffected product: Hdfgroup Hdf5. 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-2021-46243/ (Markdown: https://insights.sbomify.com/CVE-2021-46243/index.md)","id":"CVE-2021-46243","markdown":"https://insights.sbomify.com/CVE-2021-46243/index.md","name":"CVE-2021-46243","record":{"aliases":["DEBIAN-CVE-2021-46243","ECHO-106f-ca1d-e5c4","GHSA-2rqw-mg55-mp69","UBUNTU-CVE-2021-46243"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HDF5 library","requires_auth":"none","summary":"An untrusted pointer dereference in HDF5 allows attackers to cause a Denial of Service via crafted files.","user_interaction":"required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"hdf5","vendor":"hdfgroup"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"An untrusted pointer dereference vulnerability exists in HDF5 v1.13.1-1 via the function H5O__dtype_decode_helper () at hdf5/src/H5Odtype.c. This vulnerability can lead to a Denial of Service (DoS).","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":"Null dereference in n/a","id":"CVE-2021-46243","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"hdfgroup:hdf5","products":["hdfgroup:hdf5"],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in n/a","id":"CVE-2021-46244"},"packages":[],"prev":{"headline":"Use after free in n/a","id":"CVE-2021-46242"},"products":["n/a"],"published":"2022-01-21","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-32608","kev_date_added":null,"published":"2024-10-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-29157","kev_date_added":null,"published":"2024-05-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-29159","kev_date_added":null,"published":"2024-05-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-29164","kev_date_added":null,"published":"2024-05-09"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2024-32611","kev_date_added":null,"published":"2024-05-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-32615","kev_date_added":null,"published":"2024-05-09"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-32621","kev_date_added":null,"published":"2024-05-09"}],"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":"An untrusted pointer dereference in HDF5 allows attackers to cause a Denial of Service via crafted files.","url":"https://insights.sbomify.com/CVE-2021-46243/"}