GitHub Advisoryadvisory · Go

GHSA-6cr6-fmvc-vw2p Noise vulnerable to denial of service

HIGH Published 2022-12-28 Modified 2023-02-09 Official page ↗
Aliases
CVE-2021-4239
Ecosystem
Go
Packages
github.com/flynn/noise
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
Weaknesses
CWE-311
Reviewed
2022-12-29

Affected packages

• Go github.com/flynn/noise: < 1.0.0 → fixed in 1.0.0

Description

Noise is a Go implementation of the Noise Protocol Framework. 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.

Related

Alias · CVE (1)

  • CVE-2021-4239 The Noise protocol implementation suffers from weakened cryptographic security after encrypting 2^64 messages, and a potential denial of… vulnerability

Weakness · CWE (1)

  • CWE-311 Missing Encryption of Sensitive Data weakness

References