{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-28735 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-28735 is a medium-severity vulnerability in GNU GRUB, published on 20 Jul 2023. 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-2022-28735 and fix it if it is affected.\n\nWhat it is: CVE-2022-28735 is a medium-severity vulnerability in GNU GRUB, published on 20 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-28735 in the wild and no public exploit code.\n\nAffected product: GNU GRUB. 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-2022-28735/ (Markdown: https://insights.sbomify.com/CVE-2022-28735/index.md)","id":"CVE-2022-28735","markdown":"https://insights.sbomify.com/CVE-2022-28735/index.md","name":"CVE-2022-28735","record":{"aliases":["AZL-27551","AZL-34790","DEBIAN-CVE-2022-28735","GHSA-w8wh-9mrg-3ff5","UBUNTU-CVE-2022-28735"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GRUB bootloader","requires_auth":"high_privilege","summary":"Attackers can bypass Secure Boot restrictions in GRUB2 to load unverified code, compromising system integrity on shim-powered systems.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"grub2","vendor":"gnu"}],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.","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":"Security feature bypass in GNU GRUB","id":"CVE-2022-28735","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"There's a use-after-free vulnerability in grub_cmd_chainloader() function","id":"CVE-2022-28736"},"packages":[],"prev":{"headline":"Out-of-bounds write when handling split HTTP headers","id":"CVE-2022-28734"},"products":["GNU GRUB"],"published":"2023-07-20","related":[{"cvss_score":8.8,"headline":"Memory corruption in GRUB2","id":"CVE-2024-56737","kev_date_added":null,"published":"2024-12-29"},{"cvss_score":8.1,"headline":"Integer underflow in grub_net_recv_ip4_packets","id":"CVE-2022-28733","kev_date_added":null,"published":"2023-07-20"},{"cvss_score":8.1,"headline":"Out-of-bounds write when handling split HTTP headers","id":"CVE-2022-28734","kev_date_added":null,"published":"2023-07-20"},{"cvss_score":7.8,"headline":"Grub2: missing unregister call for gettext command may lead to use-after-free","id":"CVE-2025-61662","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":7.8,"headline":"Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)","id":"CVE-2024-45782","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data","id":"CVE-2025-0678","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution","id":"CVE-2025-0689","kev_date_added":null,"published":"2025-03-03"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["GNU Project"]},"summary":"Attackers can bypass Secure Boot restrictions in GRUB2 to load unverified code, compromising system integrity on shim-powered systems.","url":"https://insights.sbomify.com/CVE-2022-28735/"}