{"answers":{"affected":"2 open source packages ship an affected version, including github.com/ethereum/go-ethereum. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-42219 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-42219 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42219 is a high-severity denial of service vulnerability in n/a, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-42219 and fix it if it is affected.\n\nWhat it is: CVE-2021-42219 is a high-severity denial of service vulnerability in n/a, published on 16 Mar 2022. 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-2021-42219 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/ethereum/go-ethereum (Go): affected all versions up to 1.10.9; no fix listed\n- github.com/ethereum/go-ethereum (Go): affected all versions up to 1.10.9; no fix listed\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-2021-42219/ (Markdown: https://insights.sbomify.com/CVE-2021-42219/index.md)","id":"CVE-2021-42219","markdown":"https://insights.sbomify.com/CVE-2021-42219/index.md","name":"CVE-2021-42219","record":{"aliases":["GHSA-vrcc-g6vj-mh5w"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go Ethereum library","requires_auth":"none","summary":"Attackers can cause denial of service in Go-Ethereum nodes by sending excessive messages due to missing memory handling in the ethash algorithm.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"go_ethereum","vendor":"ethereum"}],"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":[],"description":"Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.","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":false,"headline":"Denial of service in go-ethereum","id":"CVE-2021-42219","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Dolibarr Cross Site Scripting (XSS) vulnerability","id":"CVE-2021-42220"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.10.9"],"package":"github.com/ethereum/go-ethereum","purl":null,"source":"GHSA-vrcc-g6vj-mh5w"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.10.9"],"package":"github.com/ethereum/go-ethereum","purl":"pkg:golang/github.com/ethereum/go-ethereum","source":"GHSA-vrcc-g6vj-mh5w"}],"prev":{"headline":"Denial of service in n/a","id":"CVE-2021-42218"},"products":["n/a"],"published":"2022-03-16","related":[{"cvss_score":8.7,"headline":"Go Ethereum affected by DoS via malicious p2p message","id":"CVE-2026-26314","kev_date_added":null,"published":"2026-02-19"},{"cvss_score":7.5,"headline":"go-ethereum vulnerable to denial of service via crafted GraphQL query","id":"CVE-2023-42319","kev_date_added":null,"published":"2023-10-18"},{"cvss_score":7.5,"headline":"Denial of service via malicious p2p message in go-ethereum","id":"CVE-2023-40591","kev_date_added":null,"published":"2023-09-06"},{"cvss_score":7.5,"headline":"Denial of Service in Go-Ethereum","id":"CVE-2022-23327","kev_date_added":null,"published":"2022-03-04"},{"cvss_score":7.5,"headline":"Denial of Service in Go-Ethereum","id":"CVE-2022-23328","kev_date_added":null,"published":"2022-03-04"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2018-20421","kev_date_added":null,"published":"2018-12-24"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Go-Ethereum nodes by sending excessive messages due to missing memory handling in the ethash algorithm.","url":"https://insights.sbomify.com/CVE-2021-42219/"}