{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2012-1909 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2012-1909 yet. Limit exposure of the affected software until one is available.","what":"CVE-2012-1909 is a medium-severity denial of service vulnerability in Bitcoin Bitcoin Core, published on 6 Aug 2012. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2012-1909 and fix it if it is affected.\n\nWhat it is: CVE-2012-1909 is a medium-severity denial of service vulnerability in Bitcoin Bitcoin Core, published on 6 Aug 2012. 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-2012-1909 in the wild and no public exploit code.\n\nAffected product: Bitcoin Bitcoin Core. 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-2012-1909/ (Markdown: https://insights.sbomify.com/CVE-2012-1909/index.md)","id":"CVE-2012-1909","markdown":"https://insights.sbomify.com/CVE-2012-1909/index.md","name":"CVE-2012-1909","record":{"aliases":["GHSA-77f9-3fqp-c88c"],"analysis":{"component_type":"other","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Bitcoin protocol implementation","requires_auth":"none","summary":"Remote attackers can cause denial of service by creating duplicate coinbase transactions, rendering them unspendable in Bitcoin protocol implementations.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"bitcoin_core","vendor":"bitcoin"},{"product":"wxbitcoin","vendor":"bitcoin"}],"cvss":{"score":5,"severity":"medium","source":"nvd","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","version":"2.0"},"cwes":[{"id":"CWE-16","name":null}],"description":"The Bitcoin protocol, as used in bitcoind before 0.4.4, wxBitcoin, Bitcoin-Qt, and other programs, does not properly handle multiple transactions with the same identifier, which allows remote attackers to cause a denial of service (unspendable transaction) by leveraging the ability to create a duplicate coinbase transaction.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in n/a","id":"CVE-2012-1909","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"bitcoin:bitcoin_core","products":["bitcoin:bitcoin_core"],"type":"denial_of_service","year":"2012"},"n_packages":0,"n_references":7,"next":{"headline":"Memory corruption in n/a","id":"CVE-2012-1910"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2012-1908"},"products":["n/a"],"published":"2012-08-06","related":[{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2025-46597","kev_date_added":null,"published":"2026-03-20"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2025-54604","kev_date_added":null,"published":"2025-10-28"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2025-54605","kev_date_added":null,"published":"2025-10-28"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-25220","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2024-52912","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-52914","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-52915","kev_date_added":null,"published":"2024-11-18"}],"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":"2024-09-17","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service by creating duplicate coinbase transactions, rendering them unspendable in Bitcoin protocol implementations.","url":"https://insights.sbomify.com/CVE-2012-1909/"}