{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-45839 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-45839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-45839 is a high-severity code injection vulnerability in Buildroot, published on 5 Dec 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-2023-45839 and fix it if it is affected.\n\nWhat it is: CVE-2023-45839 is a high-severity code injection vulnerability in Buildroot, published on 5 Dec 2023. 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-2023-45839 in the wild and no public exploit code.\n\nAffected product: Buildroot. 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-2023-45839/ (Markdown: https://insights.sbomify.com/CVE-2023-45839/index.md)","id":"CVE-2023-45839","markdown":"https://insights.sbomify.com/CVE-2023-45839/index.md","name":"CVE-2023-45839","record":{"aliases":["GHSA-qfxp-hcq8-c568"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Buildroot build system","requires_auth":"none","summary":"A man-in-the-middle attack can exploit hash checking flaws in Buildroot to execute arbitrary commands during the build process.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"buildroot","vendor":"buildroot"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-494","name":"Download of Code Without Integrity Check"}],"description":"Multiple data integrity vulnerabilities exist in the package hash checking functionality of Buildroot 2023.08.1 and Buildroot dev commit 622698d7847. A specially crafted man-in-the-middle attack can lead to arbitrary command execution in the builder.This vulnerability is related to the `aufs-util` package.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Code injection in Buildroot","id":"CVE-2023-45839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Code injection in Buildroot","id":"CVE-2023-45840"},"packages":[],"prev":{"headline":"Code injection in Buildroot","id":"CVE-2023-45838"},"products":["Buildroot"],"published":"2023-12-05","related":[{"cvss_score":8.1,"headline":"Supply chain in Buildroot","id":"CVE-2023-43608","kev_date_added":null,"published":"2023-12-05"},{"cvss_score":8.1,"headline":"Code injection in Buildroot","id":"CVE-2023-45838","kev_date_added":null,"published":"2023-12-05"},{"cvss_score":8.1,"headline":"Code injection in Buildroot","id":"CVE-2023-45840","kev_date_added":null,"published":"2023-12-05"},{"cvss_score":8.1,"headline":"Code injection in Buildroot","id":"CVE-2023-45841","kev_date_added":null,"published":"2023-12-05"},{"cvss_score":8.1,"headline":"Code injection in Buildroot","id":"CVE-2023-45842","kev_date_added":null,"published":"2023-12-05"}],"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":"2025-11-04","vendors":["Buildroot"]},"summary":"A man-in-the-middle attack can exploit hash checking flaws in Buildroot to execute arbitrary commands during the build process.","url":"https://insights.sbomify.com/CVE-2023-45839/"}