{"id":"CVE-2020-16150","details":"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.","modified":"2026-04-16T00:09:44.144496736Z","published":"2020-09-02T16:15:12.363Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"10.0"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"},{"extracted_events":[{"last_affected":"31"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"},{"extracted_events":[{"last_affected":"32"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"},{"extracted_events":[{"last_affected":"33"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"}]},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/"},{"type":"ADVISORY","url":"https://tls.mbed.org/tech-updates/security-advisories"},{"type":"ADVISORY","url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/Mbed-TLS/mbedtls","events":[{"introduced":"0"},{"fixed":"7cd4d2dadb5fdc8410ee667f062646bd28f37e62"},{"introduced":"8be0e6db41b4a085e90cb03983f99d3a5158d450"},{"fixed":"848a4e06b375e067552f1a21d4bc69322c673217"},{"introduced":"3f8d78411a26e833db18d9fbde0e2f0baeda87f0"},{"fixed":"523f0554b6cdc7ace5d360885c3f5bbcc73ec0e8"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.7.17"},{"introduced":"2.8.0"},{"fixed":"2.16.8"},{"introduced":"2.17.0"},{"fixed":"2.24.0"}],"source":"CPE_FIELD","cpe":"cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*"}}],"versions":["beta-oob-2","mbedos-release-15-11","mbedos-techcon-oob2","mbedtls-2.0.0","mbedtls-2.1.0","mbedtls-2.1.1","mbedtls-2.1.2","mbedtls-2.10.0","mbedtls-2.11.0","mbedtls-2.12.0","mbedtls-2.13.0","mbedtls-2.13.1","mbedtls-2.14.0","mbedtls-2.16.0","mbedtls-2.16.2","mbedtls-2.16.3","mbedtls-2.16.4","mbedtls-2.16.5","mbedtls-2.16.6","mbedtls-2.19.0","mbedtls-2.19.0d1","mbedtls-2.19.0d2","mbedtls-2.19.1","mbedtls-2.2.0","mbedtls-2.2.1","mbedtls-2.20.0","mbedtls-2.20.0d0","mbedtls-2.21.0","mbedtls-2.22.0d0","mbedtls-2.3.0","mbedtls-2.4.0","mbedtls-2.5.0","mbedtls-2.5.1","mbedtls-2.6.0","mbedtls-2.6.0-rc1","mbedtls-2.7.0","mbedtls-2.7.0-rc1","mbedtls-2.7.1","mbedtls-2.7.11","mbedtls-2.7.12","mbedtls-2.7.13","mbedtls-2.7.14","mbedtls-2.7.15","mbedtls-2.7.2","mbedtls-2.7.2-rc1","mbedtls-2.7.3","mbedtls-2.7.4","mbedtls-2.7.5","mbedtls-2.7.6","mbedtls-2.7.7","mbedtls-2.7.8","mbedtls-2.7.9","mbedtls-2.8.0","mbedtls-2.9.0","polarssl-1.2.0","polarssl-1.2.1","polarssl-1.2.2","polarssl-1.2.4","polarssl-1.2.5","polarssl-1.2.6","polarssl-1.3.0","polarssl-1.3.0-rc0","polarssl-1.3.1","polarssl-1.3.2","polarssl-1.3.3","polarssl-1.3.4","polarssl-1.3.5","polarssl-1.3.6","polarssl-1.3.7","polarssl-1.3.8","polarssl-1.3.9","yotta-2.3.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-16150.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}