ALT-PU-2018-1495-1

Обновление пакета mbedtls в ветке sisyphus

Версия2.8.0-alt1.S1
Задание#202997
Опубликовано2018-03-26
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (6)

BDU:2019-00068
MEDIUM6.2

Уязвимость реализации протоколов TLS и SSL программного обеспечения Mbed TLS, связанная с локальной синхронизацией при расшифровке RSA, позволяющая нарушителю получить доступ к защищаемой информации

Опубликовано: 2019-01-15Изменено: 2021-03-23
CVSS 3.xСРЕДНЯЯ 6.2
CVSS:3.x/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0СРЕДНЯЯ 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:N/A:N
Ссылки
CVE-2018-1000520
HIGH7.5

ARM mbedTLS version 2.7.0 and earlier contains a Ciphersuite Allows Incorrectly Signed Certificates vulnerability in mbedtls_ssl_get_verify_result() that can result in ECDSA-signed certificates are accepted, when only RSA-signed ones should be.. This attack appear to be exploitable via Peers negotiate a TLS-ECDH-RSA-* ciphersuite. Any of the peers can then provide an ECDSA-signed certificate, when only an RSA-signed one should be accepted..

Опубликовано: 2018-06-26Изменено: 2024-11-21
CVSS 2.0СРЕДНЯЯ 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVE-2018-19608
MEDIUM4.7

Arm Mbed TLS before 2.14.1, before 2.7.8, and before 2.1.17 allows a local unprivileged attacker to recover the plaintext of RSA decryption, which is used in RSA-without-(EC)DH(E) cipher suites.

Опубликовано: 2018-12-05Изменено: 2024-11-21
CVSS 2.0НИЗКАЯ 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS 3.xСРЕДНЯЯ 4.7
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2020-10932
MEDIUM4.7

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.

Опубликовано: 2020-04-15Изменено: 2024-11-21
CVSS 2.0НИЗКАЯ 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS 3.xСРЕДНЯЯ 4.7
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N