Integer Overflow or Wraparound Affecting github.com/flynn/noise package, versions <1.0.0
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Threat Intelligence
EPSS
0.07% (30th
percentile)
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Test your applications- Snyk ID SNYK-GOLANG-GITHUBCOMFLYNNNOISE-1583459
- published 9 Sep 2021
- disclosed 8 Sep 2021
- credit Unknown
Introduced: 8 Sep 2021
CVE-2021-4239 Open this link in a new tabHow to fix?
Upgrade github.com/flynn/noise to version 1.0.0 or higher.
Overview
github.com/flynn/noise is a Go implementation of the Noise Protocol Framework
Affected versions of this package are vulnerable to Integer Overflow or Wraparound. If 2^64 (~18.4 quintillion) or more messages are encrypted with Encrypt after handshaking, the nonce counter will wrap around, causing multiple messages to be encrypted with the same key and nonce, resulting in a potentially catastrophic weakening of the security properties of the symmetric cipher.