Github.Com/Flynn/Noise

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cpe:2.3:a:github.com/flynn/noise:github.com/flynn/noise:*:*:*:*:*:*:*:*

part: a version: * update: *

VendorGithub.Com/Flynn/Noise (ebfe1b53-2f26-5146-bcf3-355434fdebd7)
ProductGithub.Com/Flynn/Noise (73d74d9a-c139-579c-966c-b1c64fe6ee72)
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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2021-4239 vulnerable 2026-06-08 05:38:09.001516 Weak encryption and denial of service in github.com/flynn/noise
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.
Published: 2022-12-27T21:13:53.590Z
Updated: 2025-04-14T16:59:43.688Z
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