{"answers":{"affected":"6 open source packages ship an affected version, including org.bouncycastle:bcprov-jdk14, org.bouncycastle:bcprov-jdk15 and org.bouncycastle:bcprov-jdk15on. It affects 2 products.","exploited":"There is no known exploitation of CVE-2016-1000342 in the wild and no public exploit code.","fix":"Upgrade org.bouncycastle:bcprov-jdk14 to 1.56 or later.","what":"CVE-2016-1000342 is a high-severity vulnerability in Bouncycastle Bc-Java, published on 4 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-1000342 and fix it if it is affected.\n\nWhat it is: CVE-2016-1000342 is a high-severity vulnerability in Bouncycastle Bc-Java, published on 4 Jun 2018. 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-2016-1000342 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.bouncycastle:bcprov-jdk14 (Maven): affected all versions; fixed in 1.56\n- org.bouncycastle:bcprov-jdk14 (Maven): affected all versions; fixed in 1.56\n- org.bouncycastle:bcprov-jdk15 (Maven): affected all versions; fixed in 1.56\n- org.bouncycastle:bcprov-jdk15 (Maven): affected all versions; fixed in 1.56\n- org.bouncycastle:bcprov-jdk15on (Maven): affected all versions; fixed in 1.56\n- org.bouncycastle:bcprov-jdk15on (Maven): affected all versions; fixed in 1.56\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-2016-1000342/ (Markdown: https://insights.sbomify.com/CVE-2016-1000342/index.md)","id":"CVE-2016-1000342","markdown":"https://insights.sbomify.com/CVE-2016-1000342/index.md","name":"CVE-2016-1000342","record":{"aliases":["DEBIAN-CVE-2016-1000342","GHSA-qcj7-g2j5-g7r3","UBUNTU-CVE-2016-1000342"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java cryptography library","requires_auth":"none","summary":"Attackers can inject invisible data into signed structures by exploiting insufficient ASN.1 validation in ECDSA signatures, compromising data integrity.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"bc-java","vendor":"bouncycastle"},{"product":"debian_linux","vendor":"debian"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.","ecosystems":["Maven"],"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":"In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification","id":"CVE-2016-1000342","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"bouncycastle:bc-java","products":["bouncycastle:bc-java","debian:debian_linux"],"type":"other","year":"2016"},"n_packages":6,"n_references":7,"next":{"headline":"In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values","id":"CVE-2016-1000343"},"packages":[{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk14","purl":null,"source":"GHSA-qcj7-g2j5-g7r3"},{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk14","purl":"pkg:maven/org.bouncycastle/bcprov-jdk14","source":"GHSA-qcj7-g2j5-g7r3"},{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15","purl":null,"source":"GHSA-qcj7-g2j5-g7r3"},{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15","source":"GHSA-qcj7-g2j5-g7r3"},{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15on","purl":null,"source":"GHSA-qcj7-g2j5-g7r3"},{"ecosystem":"Maven","fixed":["1.56"],"introduced":["0"],"last_affected":[],"package":"org.bouncycastle:bcprov-jdk15on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15on","source":"GHSA-qcj7-g2j5-g7r3"}],"prev":{"headline":"Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15","id":"CVE-2016-1000341"},"products":["n/a"],"published":"2018-06-04","related":[{"cvss_score":10,"headline":"Legion of the Bouncy Castle Java Cryptography API Bleichenbacher Oracle Vulnerability","id":"CVE-2007-6721","kev_date_added":null,"published":"2009-03-30"},{"cvss_score":9.8,"headline":"Deserialization of Untrusted Data in Bouncy castle","id":"CVE-2018-1000613","kev_date_added":null,"published":"2018-07-09"},{"cvss_score":9.3,"headline":"Stapled OCSP response accepted without binding to the checked certificate","id":"CVE-2026-58062","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":9.3,"headline":"JSSE hostname verifier CN-fallback enabled by default despite documented opt-in","id":"CVE-2026-59638","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":9.3,"headline":"MTI/A0 DH agreement exponentiates unvalidated peer value","id":"CVE-2026-59650","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":9.3,"headline":"Name Constraints bypass via trailing dot in rfc822Name and URI","id":"CVE-2026-8763","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":8.7,"headline":"MLS membership checks compare a uint32 leaf_index as signed, admitting an out-of-range sender","id":"CVE-2026-17507","kev_date_added":null,"published":"2026-10-02"}],"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":"2024-08-06","vendors":["n/a"]},"summary":"Attackers can inject invisible data into signed structures by exploiting insufficient ASN.1 validation in ECDSA signatures, compromising data integrity.","url":"https://insights.sbomify.com/CVE-2016-1000342/"}