{"id":"MGASA-2020-0293","aliases":[],"status":"published","title":"Updated mbedtls packages fix security vulnerability","description":"Updated mbedtls packages fix security vulnerabilities\n\nFix a side channel vulnerability in modular exponentiation that could reveal\nan RSA private key used in a secure enclave.\n\nFix side channel in mbedtls_ecp_check_pub_priv() and mbedtls_pk_parse_key() /\nmbedtls_pk_parse_keyfile() (when loading a private key that didn't include the\nuncompressed public key), as well as mbedtls_ecp_mul() /\nmbedtls_ecp_mul_restartable() when called with a NULL f_rng argument. An\nattacker with access to precise enough timing and memory access information\n(typically an untrusted operating system attacking a secure enclave) could\nfully recover the ECC private key. \n\nFix issue in Lucky 13 counter-measure that could make it ineffective when\nhardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT macros).\nThis would cause the original Lucky 13 attack to be possible in those\nconfigurations, allowing an active network attacker to recover plaintext after\nrepeated timing measurements under some conditions.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-07-10T15:40:08Z","modified":"2026-04-16T04:25:48Z","fixes":[{"ecosystem":"Mageia:7","package":"mbedtls","fixed_in":["2.16.7-1.mga7"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Mageia:7","package":"mbedtls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16.7-1.mga7"}]}]}],"references":[{"url":"https://advisories.mageia.org/MGASA-2020-0293.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=26924","tags":["report"]},{"url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-07","tags":["advisory"]},{"url":"https://github.com/ARMmbed/mbedtls/releases/tag/mbedtls-2.16.7","tags":["web"]}],"sources":{"osv":[{"id":"MGASA-2020-0293","title":"Updated mbedtls packages fix security vulnerability","description":"Updated mbedtls packages fix security vulnerabilities\n\nFix a side channel vulnerability in modular exponentiation that could reveal\nan RSA private key used in a secure enclave.\n\nFix side channel in mbedtls_ecp_check_pub_priv() and mbedtls_pk_parse_key() /\nmbedtls_pk_parse_keyfile() (when loading a private key that didn't include the\nuncompressed public key), as well as mbedtls_ecp_mul() /\nmbedtls_ecp_mul_restartable() when called with a NULL f_rng argument. An\nattacker with access to precise enough timing and memory access information\n(typically an untrusted operating system attacking a secure enclave) could\nfully recover the ECC private key. \n\nFix issue in Lucky 13 counter-measure that could make it ineffective when\nhardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT macros).\nThis would cause the original Lucky 13 attack to be possible in those\nconfigurations, allowing an active network attacker to recover plaintext after\nrepeated timing measurements under some conditions.\n","status":"published","published":"2020-07-10T15:40:08Z","modified":"2026-04-16T04:25:48.165301Z","updated_at":"2026-11-02T15:49:41.151324Z"}]}}