CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 1CVE-2020-36425
https://notcve.org/view.php?id=CVE-2020-36425
An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock. Se ha detectado un problema en Arm Mbed TLS versiones anteriores a 2.24.0. Usa incorrectamente una comprobación de revocationDate cuando decide si acepta la revocación de certificados por medio de una CRL. • https://bugs.gentoo.org/740108 https://github.com/ARMmbed/mbedtls/issues/3340 https://github.com/ARMmbed/mbedtls/pull/3433 https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html • CWE-295: Improper Certificate Validation •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-36423
https://notcve.org/view.php?id=CVE-2020-36423
An issue was discovered in Arm Mbed TLS before 2.23.0. A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator. Se ha detectado un problema en Arm Mbed TLS versiones anteriores a 2.23.0. Un atacante remoto puede recuperar el texto plano porque una determinada contramedida de Lucky 13 no considera apropiadamente el caso de un acelerador de hardware • https://bugs.gentoo.org/730752 https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7 https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0 https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html • CWE-319: Cleartext Transmission of Sensitive Information •
CVSS: 4.9EPSS: 0%CPEs: 5EXPL: 0CVE-2021-24119
https://notcve.org/view.php?id=CVE-2021-24119
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX. En Trusted Firmware Mbed versión TLS versión 2.24.0, una vulnerabilidad de canal lateral en la decodificación de archivos PEM base64, permite a atacantes a nivel de sistema (administrador) obtener información sobre claves RSA secretas por medio de un ataque de canal controlado y de canal lateral en el software ejecutándose entornos aislados que pueden ser de un solo paso, especialmente Intel SGX • https://github.com/ARMmbed/mbedtls/releases https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRRVY7DMTX3ECFNZKDYTSFEG5AI2HBC6 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYJW7HAW3TDV2YMDFYXP3HD6WRQRTLJW • CWE-203: Observable Discrepancy •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2020-16150
https://notcve.org/view.php?id=CVE-2020-16150
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. Un canal lateral de sincronización Lucky versión 13, en la función mbedtls_ssl_decrypt_buf en el archivo library/ssl_msg.c en Trusted Firmware Mbed TLS versiones hasta 2.23.0, permite a un atacante recuperar información de la clave secreta. Esto afecta al modo CBC debido a una diferencia de tiempo calculada basada en una longitud de relleno • https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC https://tls.mbed.org/tech-updates/security-advisories https://tls.mbed.org/tech-updates/security-adv • CWE-203: Observable Discrepancy •
CVSS: 4.7EPSS: 0%CPEs: 5EXPL: 0CVE-2020-10932
https://notcve.org/view.php?id=CVE-2020-10932
An issue was discovered in Arm Mbed TLS before 2.16.6 and 2.7.x before 2.7.15. An attacker that can get precise enough side-channel measurements can recover the long-term ECDSA private key by (1) reconstructing the projective coordinate of the result of scalar multiplication by exploiting side channels in the conversion to affine coordinates; (2) using an attack described by Naccache, Smart, and Stern in 2003 to recover a few bits of the ephemeral scalar from those projective coordinates via several measurements; and (3) using a lattice attack to get from there to the long-term ECDSA private key used for the signatures. Typically an attacker would have sufficient access when attacking an SGX enclave and controlling the untrusted OS. Se detectó un problema en Arm Mbed TLS versiones anteriores a 2.16.6 y 2.7.x versiones anteriores a 2.7.15. Un atacante que puede obtener mediciones de canal lateral lo suficientemente precisas que puede recuperar la clave privada ECDSA a largo plazo al (1) reconstruir la coordenada proyectiva del resultado de la multiplicación escalar explotando canales laterales en la conversión a coordenadas afines; (2) usar un ataque descrito por Naccache, Smart y Stern en 2003 para recuperar algunos bits del escalar efímero de esas coordenadas proyectivas por medio de varias mediciones; y (3) usar un ataque de red para llegar desde allí a la clave privada ECDSA a largo plazo utilizada para las firmas. • https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCWN5HIF4CJ2LZTOMEBJ7Q4IMMV7ZU2V https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNOS2IIBH5WNJXZUV546PY7666DE7Y3L https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released https://tls.mbed.org/tech-updates/security-advisories https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advi • CWE-203: Observable Discrepancy CWE-327: Use of a Broken or Risky Cryptographic Algorithm •