Все бюллетени/p11/ALT-PU-2026-17108-6
ALT-PU-2026-17108-6

Обновление пакета python3-module-cryptography в ветке p11

Версия50.0.1-alt1
Задание#434883
Опубликовано2026-11-06
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (8)

BDU:2026-11378
MEDIUM5.9

Уязвимость функций EllipticCurvePublicNumbers.public_key(), EllipticCurvePublicNumbers.public_key(), load_der_public_key() и load_pem_public_key() криптографической библиотеки Python-cryptography, позволяющая нарушителю получить доступ к конфиденциальным данным

Опубликовано: 2026-08-10Изменено: 2026-08-31
CVSS 3.xСРЕДНЯЯ 5.9
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0СРЕДНЯЯ 5.4
CVSS:2.0/AV:N/AC:H/Au:N/C:C/I:N/A:N
Ссылки
BDU:2026-14094
MEDIUM5.3

Уязвимость пакета cryptography интерпретатора языка программирования Python, связанная с ошибками процедуры подтверждения подлинности сертификата, позволяющая нарушителю оказать воздействие на целостность защищаемой информации

Опубликовано: 2026-09-03
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 2.0СРЕДНЯЯ 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N
Ссылки
CVE-2026-26007
HIGH8.2

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 46.0.5, the public_key_from_numbers (or EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() and load_pem_public_key() functions do not verify that the point belongs to the expected prime-order subgroup of the curve. This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification (ECDSA) and shared key negotiation (ECDH). When the victim computes the shared secret as S = [victim_private_key]P via ECDH, this leaks information about victim_private_key mod (small_subgroup_order). For curves with cofactor > 1, this reveals the least significant bits of the private key. When these weak public keys are used in ECDSA , it's easy to forge signatures on the small subgroup. Only SECT curves are impacted by this. This vulnerability is fixed in 46.0.5.

Опубликовано: 2026-02-10Изменено: 2026-09-10
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 4.0ВЫСОКАЯ 8.2
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки
CVE-2026-34073
LOW1.7

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to version 46.0.6, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a wildcard leaf certificate for *.example.com, even if the leaf's parent certificate (or upwards) contained an excluded subtree constraint for bar.example.com. This issue has been patched in version 46.0.6.

Опубликовано: 2026-03-31Изменено: 2026-10-14
CVSS 3.xСРЕДНЯЯ 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 4.0НИЗКАЯ 1.7
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки
CVE-2026-39892
MEDIUM6.9

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

Опубликовано: 2026-04-08Изменено: 2026-11-04
CVSS 3.xКРИТИЧЕСКАЯ 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки
GHSA-m959-cc7f-wv43
LOW1.7

cryptography has incomplete DNS name constraint enforcement on peer names

Опубликовано: 2026-03-27Изменено: 2026-06-05
CVSS 3.x
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 4.0НИЗКАЯ 1.7
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
Ссылки
GHSA-p423-j2cm-9vmq
MEDIUM6.9

Cryptography vulnerable to buffer overflow if non-contiguous buffers were passed to APIs

Опубликовано: 2026-04-08Изменено: 2026-11-04
CVSS 3.x
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0
CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Ссылки
GHSA-r6ph-v2qm-q3c2
HIGH8.2

cryptography Vulnerable to a Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

Опубликовано: 2026-02-10Изменено: 2026-02-11
CVSS 4.0ВЫСОКАЯ 8.2
CVSS:4.0/CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Ссылки