CVE-ID |
CVE-2021-4239
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• CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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Description |
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.
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References |
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
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Assigning CNA |
Go Project |
Date Record Created |
20220729 |
Disclaimer: The record creation date may reflect when
the CVE ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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Phase (Legacy) |
Assigned (20220729) |
Votes (Legacy) |
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Comments (Legacy) |
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Proposed (Legacy) |
N/A |
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