CVE-2021-4239

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Summary

CVECVE-2021-4239
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-12-27 22:15:00 UTC
Updated2023-01-06 01:30:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-311

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Noiseprotocol Noise - All All All

References

ReferenceSourceLinkTags
GO-2022-0425 - Go Packages MISC pkg.go.dev
Fix nonce handling by titanous · Pull Request #44 · flynn/noise · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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