{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-3968 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-3968 is a high-severity vulnerability in Das U-Boot, published on 21 Mar 2019. 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-2018-3968 and fix it if it is affected.\n\nWhat it is: CVE-2018-3968 is a high-severity vulnerability in Das U-Boot, published on 21 Mar 2019. 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-2018-3968 in the wild and no public exploit code.\n\nAffected product: Das U-Boot. 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-2018-3968/ (Markdown: https://insights.sbomify.com/CVE-2018-3968/index.md)","id":"CVE-2018-3968","markdown":"https://insights.sbomify.com/CVE-2018-3968/index.md","name":"CVE-2018-3968","record":{"aliases":["DEBIAN-CVE-2018-3968","GHSA-xjmf-xr2j-gfx7"],"analysis":{"component_type":"hardware_firmware","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"U-Boot bootloader","requires_auth":"high_privilege","summary":"A local attacker can bypass U-Boot's verified boot protection to execute an unsigned kernel, compromising system integrity.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"u-boot","vendor":"denx"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot.","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 Das U-Boot","id":"CVE-2018-3968","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in CUJO","id":"CVE-2018-3969"},"packages":[],"prev":{"headline":"Use after free in Foxit PDF Reader","id":"CVE-2018-3967"},"products":["Das U-Boot"],"published":"2019-03-21","related":[{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2022-34835","kev_date_added":null,"published":"2022-06-29"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-30767","kev_date_added":null,"published":"2022-05-16"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2020-8432","kev_date_added":null,"published":"2020-01-29"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2019-14192","kev_date_added":null,"published":"2019-07-31"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-14193","kev_date_added":null,"published":"2019-07-31"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-14194","kev_date_added":null,"published":"2019-07-31"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-14195","kev_date_added":null,"published":"2019-07-31"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"A local attacker can bypass U-Boot's verified boot protection to execute an unsigned kernel, compromising system integrity.","url":"https://insights.sbomify.com/CVE-2018-3968/"}