{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-41794 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-41794 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-41794 is a high-severity memory corruption vulnerability in Open5gs Open5gs, published on 7 Oct 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-2021-41794 and fix it if it is affected.\n\nWhat it is: CVE-2021-41794 is a high-severity memory corruption vulnerability in Open5gs Open5gs, published on 7 Oct 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-2021-41794 in the wild and no public exploit code.\n\nAffected product: Open5gs Open5gs. 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-2021-41794/ (Markdown: https://insights.sbomify.com/CVE-2021-41794/index.md)","id":"CVE-2021-41794","markdown":"https://insights.sbomify.com/CVE-2021-41794/index.md","name":"CVE-2021-41794","record":{"aliases":["GHSA-mv7p-ffm6-58w7"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"5G core network software","requires_auth":"none","summary":"A buffer overflow in Open5GS allows remote attackers to execute arbitrary code or cause a denial of service via a crafted PFCP request.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"open5gs","vendor":"open5gs"}],"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-120","name":"Buffer Copy without Checking Size of Input"}],"description":"ogs_fqdn_parse in Open5GS 1.0.0 through 2.3.3 inappropriately trusts a client-supplied length value, leading to a buffer overflow. The attacker can send a PFCP Session Establishment Request with \"internet\" as the PDI Network Instance. The first character is interpreted as a length value to be used in a memcpy call. The destination buffer is only 100 bytes long on the stack. Then, 'i' gets interpreted as 105 bytes to copy from the source buffer to the destination buffer.","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-2021-41794","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"open5gs:open5gs","products":["open5gs:open5gs"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in n/a","id":"CVE-2021-41795"},"packages":[],"prev":{"headline":"Server-side request forgery in n/a","id":"CVE-2021-41792"},"products":["n/a"],"published":"2021-10-07","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-40130","kev_date_added":null,"published":"2024-07-16"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2021-28122","kev_date_added":null,"published":"2021-03-10"},{"cvss_score":8.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2021-25863","kev_date_added":null,"published":"2021-01-26"},{"cvss_score":8.7,"headline":"Reachable Assertion vulnerability in Open5GS","id":"CVE-2025-41067","kev_date_added":null,"published":"2025-10-27"},{"cvss_score":8.7,"headline":"Reachable Assertion vulnerability in Open5GS","id":"CVE-2025-41068","kev_date_added":null,"published":"2025-10-27"},{"cvss_score":8.6,"headline":"Denial of service in n/a","id":"CVE-2023-37015","kev_date_added":null,"published":"2025-01-22"},{"cvss_score":8.6,"headline":"Denial of service in n/a","id":"CVE-2023-37016","kev_date_added":null,"published":"2025-01-22"}],"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 buffer overflow in Open5GS allows remote attackers to execute arbitrary code or cause a denial of service via a crafted PFCP request.","url":"https://insights.sbomify.com/CVE-2021-41794/"}