{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-16150 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-16150 is a medium-severity vulnerability in Arm Mbed Tls, published on 2 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-16150 and fix it if it is affected.\n\nWhat it is: CVE-2020-16150 is a medium-severity vulnerability in Arm Mbed Tls, published on 2 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-16150 in the wild and no public exploit code.\n\nAffected product: Arm Mbed Tls. 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-2020-16150/ (Markdown: https://insights.sbomify.com/CVE-2020-16150/index.md)","id":"CVE-2020-16150","markdown":"https://insights.sbomify.com/CVE-2020-16150/index.md","name":"CVE-2020-16150","record":{"aliases":["ALPINE-CVE-2020-16150","DEBIAN-CVE-2020-16150","GHSA-fgr3-j7rx-4hfv","JLSEC-2025-202","MGASA-2020-0370","UBUNTU-CVE-2020-16150"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Mbed TLS library","requires_auth":"low_privilege","summary":"An attacker can recover secret key information via a timing side channel in Mbed TLS CBC mode decryption, compromising encrypted communications.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mbed_tls","vendor":"arm"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"}],"description":"A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.","ecosystems":[],"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":"Information disclosure in n/a","id":"CVE-2020-16150","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"arm:mbed_tls","products":["arm:mbed_tls","debian:debian_linux","fedoraproject:fedora"],"type":"information_disclosure","year":"2020"},"n_packages":0,"n_references":6,"next":{"headline":"Code injection in n/a","id":"CVE-2020-16152"},"packages":[],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2020-16149"},"products":["n/a"],"published":"2020-09-02","related":[{"cvss_score":9.8,"headline":"Deserialization in n/a","id":"CVE-2026-34877","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-46393","kev_date_added":null,"published":"2022-12-15"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2021-44732","kev_date_added":null,"published":"2021-12-20"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2017-18187","kev_date_added":null,"published":"2018-02-14"},{"cvss_score":9.8,"headline":"Memory corruption in ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0","id":"CVE-2018-0487","kev_date_added":null,"published":"2018-02-13"},{"cvss_score":9.8,"headline":"Memory corruption in ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0","id":"CVE-2018-0488","kev_date_added":null,"published":"2018-02-13"},{"cvss_score":9.1,"headline":"Weak cryptography in n/a","id":"CVE-2026-34872","kev_date_added":null,"published":"2026-04-01"}],"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":["n/a"]},"summary":"An attacker can recover secret key information via a timing side channel in Mbed TLS CBC mode decryption, compromising encrypted communications.","url":"https://insights.sbomify.com/CVE-2020-16150/"}