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CVE-2021-4239

Опубликовано: 27 дек. 2022
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.5

Описание

The Noise protocol implementation suffers from weakened cryptographic security after encrypting 2^64 messages, and a potential denial of service attack. After 2^64 (~18.4 quintillion) messages are encrypted with the Encrypt function, the nonce counter will wrap around, causing multiple messages to be encrypted with the same key and nonce. In a separate issue, the Decrypt function increments the nonce state even when it fails to decrypt a message. If an attacker can provide an invalid input to the Decrypt function, this will cause the nonce state to desynchronize between the peers, resulting in a failure to encrypt all subsequent messages.

РелизСтатусПримечание
bionic

DNE

devel

needs-triage

esm-apps/jammy

needs-triage

esm-apps/noble

needs-triage

esm-infra/focal

DNE

focal

DNE

jammy

needs-triage

kinetic

ignored

end of life, was needs-triage
lunar

ignored

end of life, was needs-triage
mantic

ignored

end of life, was needs-triage

Показывать по

EPSS

Процентиль: 32%
0.00126
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
nvd
около 3 лет назад

The Noise protocol implementation suffers from weakened cryptographic security after encrypting 2^64 messages, and a potential denial of service attack. After 2^64 (~18.4 quintillion) messages are encrypted with the Encrypt function, the nonce counter will wrap around, causing multiple messages to be encrypted with the same key and nonce. In a separate issue, the Decrypt function increments the nonce state even when it fails to decrypt a message. If an attacker can provide an invalid input to the Decrypt function, this will cause the nonce state to desynchronize between the peers, resulting in a failure to encrypt all subsequent messages.

CVSS3: 7.5
debian
около 3 лет назад

The Noise protocol implementation suffers from weakened cryptographic ...

CVSS3: 7.7
github
около 3 лет назад

Noise vulnerable to denial of service

EPSS

Процентиль: 32%
0.00126
Низкий

7.5 High

CVSS3