{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38439 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-38439 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-38439 is a high-severity memory corruption vulnerability in GurumNetworks GurumDDS, published on 5 May 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-2021-38439 and fix it if it is affected.\n\nWhat it is: CVE-2021-38439 is a high-severity memory corruption vulnerability in GurumNetworks GurumDDS, published on 5 May 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-2021-38439 in the wild and no public exploit code.\n\nAffected product: GurumNetworks GurumDDS. 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-2021-38439/ (Markdown: https://insights.sbomify.com/CVE-2021-38439/index.md)","id":"CVE-2021-38439","markdown":"https://insights.sbomify.com/CVE-2021-38439/index.md","name":"CVE-2021-38439","record":{"aliases":["GHSA-g8fv-j97f-qw8r"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"GurumDDS middleware","requires_auth":"none","summary":"A heap-based buffer overflow in GurumDDS allows remote attackers to execute arbitrary code or cause a denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"gurumdds","vendor":"gurum"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"All versions of GurumDDS are vulnerable to heap-based buffer overflow, which may cause a denial-of-service condition or remotely execute arbitrary code.","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":"GurumDDS Heap-based Buffer Overflow","id":"CVE-2021-38439","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"FATEK Automation WinProladder","id":"CVE-2021-38440"},"packages":[],"prev":{"headline":"FATEK Automation WinProladder","id":"CVE-2021-38438"},"products":["GurumDDS"],"published":"2022-05-05","related":[{"cvss_score":6.6,"headline":"GurumDDS Heap-based Incorrect Calculation of Buffer Size","id":"CVE-2021-38423","kev_date_added":null,"published":"2022-05-05"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-16","vendors":["GurumNetworks"]},"summary":"A heap-based buffer overflow in GurumDDS allows remote attackers to execute arbitrary code or cause a denial of service.","url":"https://insights.sbomify.com/CVE-2021-38439/"}