{"answers":{"affected":"2 open source packages ship an affected version, including routinator. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-43174 in the wild and no public exploit code.","fix":"Upgrade routinator to 0.10.2 or later.","what":"CVE-2021-43174 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 9 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-2021-43174 and fix it if it is affected.\n\nWhat it is: CVE-2021-43174 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 9 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-2021-43174 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- routinator (crates.io): affected from 0.9.0; fixed in 0.10.2\n- routinator (crates.io): affected from 0.9.0; fixed in 0.10.2\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-2021-43174/ (Markdown: https://insights.sbomify.com/CVE-2021-43174/index.md)","id":"CVE-2021-43174","markdown":"https://insights.sbomify.com/CVE-2021-43174/index.md","name":"CVE-2021-43174","record":{"aliases":["DEBIAN-CVE-2021-43174","GHSA-6mv9-qcx2-3hh3"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Routinator RPKI server","requires_auth":"none","summary":"A malicious RRDP repository can cause Routinator to crash via memory exhaustion using gzip-compressed XML whitespace.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NLnet Labs","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"routinator","vendor":"nlnetlabs"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-1325","name":"Improperly Controlled Sequential Memory Allocation"}],"description":"NLnet Labs Routinator versions 0.9.0 up to and including 0.10.1, support the gzip transfer encoding when querying RRDP repositories. This encoding can be used by an RRDP repository to cause an out-of-memory crash in these versions of Routinator. RRDP uses XML which allows arbitrary amounts of white space in the encoded data. The gzip scheme compresses such white space extremely well, leading to very small compressed files that become huge when being decompressed for further processing, big enough that Routinator runs out of memory when parsing input data waiting for the next XML element.","ecosystems":["crates.io"],"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":"gzip transfer encoding caused out-of-memory crash","id":"CVE-2021-43174","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Auth bypass in GOautodial API","id":"CVE-2021-43175"},"packages":[{"ecosystem":"crates.io","fixed":["0.10.2"],"introduced":["0.9.0"],"last_affected":[],"package":"routinator","purl":null,"source":"GHSA-6mv9-qcx2-3hh3"},{"ecosystem":"crates.io","fixed":["0.10.2"],"introduced":["0.9.0"],"last_affected":[],"package":"routinator","purl":"pkg:cargo/routinator","source":"GHSA-6mv9-qcx2-3hh3"}],"prev":{"headline":"Hanging RRDP request","id":"CVE-2021-43173"},"products":["Routinator"],"published":"2021-11-09","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"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":["NLnet Labs"]},"summary":"A malicious RRDP repository can cause Routinator to crash via memory exhaustion using gzip-compressed XML whitespace.","url":"https://insights.sbomify.com/CVE-2021-43174/"}