GO-2022-0209

See a problem?
Please try reporting it to the source first.

Source

https://pkg.go.dev/vuln/GO-2022-0209

Import Source

https://vuln.go.dev/ID/GO-2022-0209.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2022-0209

Aliases

Published

2022-07-01T20:15:25Z

Modified

2024-05-20T16:03:47Z

Summary

Insufficiently random values in golang.org/x/crypto/salsa20

Details

XORKeyStream generates incorrect and insecure output for very large inputs.

If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications.

The issue might affect uses of golang.org/x/crypto/nacl with extremely large messages.

Architectures other than amd64 and uses that generate less than 256 GiB of keystream for a single salsa20.XORKeyStream invocation are unaffected.

References

Credits

- Michael McLoughlin

Affected packages

Go / golang.org/x/crypto

Package

Name: golang.org/x/crypto; View open source insights on deps.dev
Purl: pkg:golang/golang.org/x/crypto

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.0.0-20190320223903-b7391e95e576

Ecosystem specific

{
    "imports": [
        {
            "path": "golang.org/x/crypto/salsa20/salsa",
            "goarch": [
                "amd64"
            ],
            "symbols": [
                "XORKeyStream"
            ]
        }
    ]
}