{"answers":{"affected":"2 open source packages ship an affected version, including github.com/free5gc/free5gc. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-47345 exists.","fix":"No fix has been published for CVE-2023-47345 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-47345 is a high-severity denial of service vulnerability in Free5gc Free5gc, published on 15 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-47345 and fix it if it is affected.\n\nWhat it is: CVE-2023-47345 is a high-severity denial of service vulnerability in Free5gc Free5gc, published on 15 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-47345 exists.\n\nAffected packages and fixed versions:\n- github.com/free5gc/free5gc (Go): affected all versions up to 3.3.0; no fix listed\n- github.com/free5gc/free5gc (Go): affected all versions up to 3.3.0; no fix listed\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-2023-47345/ (Markdown: https://insights.sbomify.com/CVE-2023-47345/index.md)","id":"CVE-2023-47345","markdown":"https://insights.sbomify.com/CVE-2023-47345/index.md","name":"CVE-2023-47345","record":{"aliases":["GHSA-6944-6pmv-6mp2"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"5G Core Network","requires_auth":"none","summary":"Attackers can cause denial of service in free5gc by sending crafted PFCP messages with malformed Heartbeat information elements.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"free5gc","vendor":"free5gc"}],"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":"Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP message with malformed PFCP Heartbeat message whose Recovery Time Stamp IE length is mutated to zero.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"free5gc Buffer Overflow vulnerability","id":"CVE-2023-47345","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"free5gc:free5gc","products":["free5gc:free5gc"],"type":"denial_of_service","year":"2023"},"n_packages":2,"n_references":1,"next":{"headline":"Memory corruption in n/a","id":"CVE-2023-47346"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.3.0"],"package":"github.com/free5gc/free5gc","purl":null,"source":"GHSA-6944-6pmv-6mp2"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.3.0"],"package":"github.com/free5gc/free5gc","purl":"pkg:golang/github.com/free5gc/free5gc","source":"GHSA-6944-6pmv-6mp2"}],"prev":{"headline":"Security feature bypass in n/a","id":"CVE-2023-47335"},"products":["n/a"],"published":"2023-11-15","related":[{"cvss_score":10,"headline":"free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler","id":"CVE-2026-44327","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":10,"headline":"free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers","id":"CVE-2026-44329","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":10,"headline":"free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions","id":"CVE-2026-44330","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-63679","kev_date_added":null,"published":"2025-11-12"},{"cvss_score":9.4,"headline":"free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions","id":"CVE-2026-44315","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":9.4,"headline":"free5GC's NEF 3gpp-traffic-influence API is unauthenticated; missing or forged bearer tokens can create, read, patch, and delete subscriptions","id":"CVE-2026-44326","kev_date_added":null,"published":"2026-05-27"},{"cvss_score":8.7,"headline":"free5gc UDR improper path validation allows unauthenticated access to Traffic Influence Subscriptions","id":"CVE-2026-40247","kev_date_added":null,"published":"2026-04-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-29","vendors":["n/a"]},"summary":"Attackers can cause denial of service in free5gc by sending crafted PFCP messages with malformed Heartbeat information elements.","url":"https://insights.sbomify.com/CVE-2023-47345/"}