{"answers":{"affected":"3 open source packages ship an affected version, including github.com/cloudflare/cfrpki. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-3908 in the wild and no public exploit code.","fix":"Upgrade github.com/cloudflare/cfrpki to 1.4.0 or later.","what":"CVE-2021-3908 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 11 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3908 and fix it if it is affected.\n\nWhat it is: CVE-2021-3908 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 11 Nov 2021. 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-2021-3908 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/cloudflare/cfrpki (Go): affected all versions; fixed in 1.4.0\n- github.com/cloudflare/cfrpki (Go): affected all versions; fixed in 1.4.0\n- github.com/cloudflare/cfrpki (Go): affected all versions; fixed in 1.4.0\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-2021-3908/ (Markdown: https://insights.sbomify.com/CVE-2021-3908/index.md)","id":"CVE-2021-3908","markdown":"https://insights.sbomify.com/CVE-2021-3908/index.md","name":"CVE-2021-3908","record":{"aliases":["DEBIAN-CVE-2021-3908","GHSA-g5gj-9ggf-9vmq","GO-2022-0249"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"RPKI validation tool","requires_auth":"none","summary":"Attackers can cause OctoRPKI to hang indefinitely by providing an infinitely deep certificate chain, leading to a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cloudflare","cpe":[{"product":"octorpki","vendor":"cloudflare"},{"product":"debian_linux","vendor":"debian"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"OctoRPKI does not limit the depth of a certificate chain, allowing for a CA to create children in an ad-hoc fashion, thereby making tree traversal never end.","ecosystems":["Go"],"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":"Infinite certificate chain depth results in OctoRPKI running forever","id":"CVE-2021-3908","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"denial_of_service","year":"2021"},"n_packages":3,"n_references":2,"next":{"headline":"Infinite open connection causes OctoRPKI to hang forever","id":"CVE-2021-3909"},"packages":[{"ecosystem":"Go","fixed":["1.4.0"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudflare/cfrpki","purl":null,"source":"GHSA-g5gj-9ggf-9vmq"},{"ecosystem":"Go","fixed":["1.4.0"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudflare/cfrpki","purl":"pkg:golang/github.com/cloudflare/cfrpki","source":"GHSA-g5gj-9ggf-9vmq"},{"ecosystem":"Go","fixed":["1.4.0"],"introduced":["0"],"last_affected":[],"package":"github.com/cloudflare/cfrpki","purl":"pkg:golang/github.com/cloudflare/cfrpki","source":"GO-2022-0249"}],"prev":{"headline":"Arbitrary filepath traversal via URI injection","id":"CVE-2021-3907"},"products":["octorpki"],"published":"2021-11-11","related":[{"cvss_score":7.5,"headline":"Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki","id":"CVE-2021-3978","kev_date_added":null,"published":"2025-01-29"},{"cvss_score":7.5,"headline":"OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values","id":"CVE-2021-3761","kev_date_added":null,"published":"2021-09-09"},{"cvss_score":7.4,"headline":"Arbitrary filepath traversal via URI injection","id":"CVE-2021-3907","kev_date_added":null,"published":"2021-11-11"},{"cvss_score":5.4,"headline":"OctoRPKI crash when maximum iterations number is reached","id":"CVE-2022-3616","kev_date_added":null,"published":"2022-10-28"},{"cvss_score":4.4,"headline":"Infinite open connection causes OctoRPKI to hang forever","id":"CVE-2021-3909","kev_date_added":null,"published":"2021-11-11"},{"cvss_score":4.4,"headline":"NUL character in ROA causes OctoRPKI to crash","id":"CVE-2021-3910","kev_date_added":null,"published":"2021-11-11"}],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2024-09-16","vendors":["Cloudflare"]},"summary":"Attackers can cause OctoRPKI to hang indefinitely by providing an infinitely deep certificate chain, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2021-3908/"}