{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-34430 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34430 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34430 is a high-severity vulnerability in The Eclipse Foundation Eclipse TinyDTLS, published on 8 Jul 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-2021-34430 and fix it if it is affected.\n\nWhat it is: CVE-2021-34430 is a high-severity vulnerability in The Eclipse Foundation Eclipse TinyDTLS, published on 8 Jul 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-2021-34430 in the wild and no public exploit code.\n\nAffected product: The Eclipse Foundation Eclipse TinyDTLS. 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-2021-34430/ (Markdown: https://insights.sbomify.com/CVE-2021-34430/index.md)","id":"CVE-2021-34430","markdown":"https://insights.sbomify.com/CVE-2021-34430/index.md","name":"CVE-2021-34430","record":{"aliases":["GHSA-ffg3-3xwj-f92r"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"DTLS library","requires_auth":"none","summary":"Remote attackers can decrypt DTLS traffic by computing the master key due to reliance on a weak C library random number generator.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"tinydtls","vendor":"eclipse"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-326","name":"Inadequate Encryption Strength"},{"id":"CWE-338","name":"Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"}],"description":"Eclipse TinyDTLS through 0.9-rc1 relies on the rand function in the C library, which makes it easier for remote attackers to compute the master key and then decrypt DTLS traffic.","ecosystems":[],"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":"Weak cryptography in Eclipse TinyDTLS","id":"CVE-2021-34430","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"weak_cryptography","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Eclipse Mosquitto","id":"CVE-2021-34431"},"packages":[],"prev":{"headline":"Encoded URIs can access WEB-INF directory in Eclipse Jetty","id":"CVE-2021-34429"},"products":["Eclipse TinyDTLS"],"published":"2021-07-08","related":[{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2017-7243","kev_date_added":null,"published":"2017-03-24"}],"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":"2024-08-04","vendors":["The Eclipse Foundation"]},"summary":"Remote attackers can decrypt DTLS traffic by computing the master key due to reliance on a weak C library random number generator.","url":"https://insights.sbomify.com/CVE-2021-34430/"}