security: fix CVE-2023-48795

[mikecook]

The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack.

Additionally, match go module version to oldest testing go version.

Commands run:

• go get -u golang.org/x/crypto@v0.17.0
• go mod tidy -go=1.17

See:

• https://nvd.nist.gov/vuln/detail/CVE-2023-48795
• https://github.com/golang/crypto/commit/9d2ee975ef9fe627bf0a6f01c1f69e8ef1d4f05d

[mikecook]

@techknowlogick got another one for you

[techknowlogick]

@mikecook much appreciated:)