{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-45235 exists.","fix":"Apply the vendor's patch.","what":"CVE-2023-45235 is a high-severity memory corruption vulnerability in TianoCore edk2, published on 16 Jan 2024. 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-2023-45235 and fix it if it is affected.\n\nWhat it is: CVE-2023-45235 is a high-severity memory corruption vulnerability in TianoCore edk2, published on 16 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-45235 exists.\n\nAffected product: TianoCore edk2. 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-2023-45235/ (Markdown: https://insights.sbomify.com/CVE-2023-45235/index.md)","id":"CVE-2023-45235","markdown":"https://insights.sbomify.com/CVE-2023-45235/index.md","name":"CVE-2023-45235","record":{"aliases":["AZL-39064","AZL-39319","AZL-39490","BELL-CVE-2023-45235","DEBIAN-CVE-2023-45235","GHSA-h9v6-q439-p7j2","RHSA-2024:6845","RHSA-2024:6849","RHSA-2024:6931","RHSA-2024:8449","RHSA-2024:8455","UBUNTU-CVE-2023-45235"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"EDK II firmware","requires_auth":"none","summary":"An attacker can exploit a buffer overflow in EDK II's DHCPv6 handling to gain unauthorized access and compromise system integrity.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TianoCore","cpe":[{"product":"edk2","vendor":"tianocore"}],"cvss":{"score":8.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"EDK2's Network Package is susceptible to a buffer overflow vulnerability when\n\nhandling Server ID option \n\n from a DHCPv6 proxy Advertise message. This\n vulnerability can be exploited by an attacker to gain unauthorized \naccess and potentially lead to a loss of Confidentiality, Integrity and/or Availability.","ecosystems":["Red Hat:rhel_aus:8.2::appstream","Red Hat:rhel_aus:8.4::appstream","Red Hat:rhel_aus:8.6::appstream","Red Hat:rhel_e4s:8.4::appstream","Red Hat:rhel_e4s:8.6::appstream","Red Hat:rhel_e4s:9.0::appstream","Red Hat:rhel_eus:8.8::appstream","Red Hat:rhel_tus:8.4::appstream","Red Hat:rhel_tus:8.6::appstream"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45235","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":21,"n_references":5,"next":{"headline":"Predictable TCP ISNs in EDK II Network Package","id":"CVE-2023-45236"},"packages":[{"ecosystem":"Red Hat:rhel_aus:8.2::appstream","fixed":["0:20190829git37eef91017ad-9.el8_2.5"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:6849"},{"ecosystem":"Red Hat:rhel_aus:8.2::appstream","fixed":["0:20190829git37eef91017ad-9.el8_2.5"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:6849"},{"ecosystem":"Red Hat:rhel_aus:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_aus:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_aus:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_e4s:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_e4s:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_e4s:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_e4s:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2-aarch64","purl":"pkg:rpm/redhat/edk2-aarch64","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_e4s:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_e4s:9.0::appstream","fixed":["0:20220126gitbb1bba3d77-3.el9_0.5"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:6931"},{"ecosystem":"Red Hat:rhel_e4s:9.0::appstream","fixed":["0:20220126gitbb1bba3d77-3.el9_0.5"],"introduced":["0"],"last_affected":[],"package":"edk2-aarch64","purl":"pkg:rpm/redhat/edk2-aarch64","source":"RHSA-2024:6931"},{"ecosystem":"Red Hat:rhel_e4s:9.0::appstream","fixed":["0:20220126gitbb1bba3d77-3.el9_0.5"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:6931"},{"ecosystem":"Red Hat:rhel_eus:8.8::appstream","fixed":["0:20220126gitbb1bba3d77-4.el8_8.5"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:6845"},{"ecosystem":"Red Hat:rhel_eus:8.8::appstream","fixed":["0:20220126gitbb1bba3d77-4.el8_8.5"],"introduced":["0"],"last_affected":[],"package":"edk2-aarch64","purl":"pkg:rpm/redhat/edk2-aarch64","source":"RHSA-2024:6845"},{"ecosystem":"Red Hat:rhel_eus:8.8::appstream","fixed":["0:20220126gitbb1bba3d77-4.el8_8.5"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:6845"},{"ecosystem":"Red Hat:rhel_tus:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_tus:8.4::appstream","fixed":["0:20200602gitca407c7246bf-4.el8_4.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8449"},{"ecosystem":"Red Hat:rhel_tus:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2","purl":"pkg:rpm/redhat/edk2","source":"RHSA-2024:8455"},{"ecosystem":"Red Hat:rhel_tus:8.6::appstream","fixed":["0:20220126gitbb1bba3d77-2.el8_6.6"],"introduced":["0"],"last_affected":[],"package":"edk2-ovmf","purl":"pkg:rpm/redhat/edk2-ovmf","source":"RHSA-2024:8455"}],"prev":{"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45234"},"products":["edk2"],"published":"2024-01-16","related":[{"cvss_score":8.3,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45230","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":8.3,"headline":"Buffer Overflow in EDK II Network Package","id":"CVE-2023-45234","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":7.8,"headline":"Denial of service in EDK II","id":"CVE-2021-28210","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":7.8,"headline":"Null dereference in Tianocore EDK2","id":"CVE-2019-14584","kev_date_added":null,"published":"2021-06-03"},{"cvss_score":7.8,"headline":"Privilege escalation in Tianocore","id":"CVE-2017-5731","kev_date_added":null,"published":"2019-10-28"},{"cvss_score":7.5,"headline":"Infinite loop in EDK II Network Package","id":"CVE-2023-45232","kev_date_added":null,"published":"2024-01-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"total"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["TianoCore"]},"summary":"An attacker can exploit a buffer overflow in EDK II's DHCPv6 handling to gain unauthorized access and compromise system integrity.","url":"https://insights.sbomify.com/CVE-2023-45235/"}