ssh: sanitize various error messages

Similar to CL 780180, sanitize other error messages that are controlled
by the remote peer, to avoid potential injection of control characters.

Also remove sanitizeString usage as it is not strictly needed to escape
error messages safely, and for consistency with how we sanitize other
error messages throughout the codebase.

BannerDisplayStderr is left unsanitized for now, as it is one instance
where we might actually want control characters for valid reasons (see
golang/go#80302).

Updates golang/go#80302
Fixes golang/go#80301

Change-Id: Ie40f4ac2f76afed740dceb548a4b0fa96a6a6964
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/798420
Auto-Submit: Nicholas Husin <nsh@golang.org>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Nicola Murino <nicola.murino@gmail.com>
Reviewed-by: Nicholas Husin <husin@google.com>
8 files changed
tree: 7bbbc79ceef05bd1099ab79fa7c02774d356e311
  1. acme/
  2. argon2/
  3. bcrypt/
  4. blake2b/
  5. blake2s/
  6. blowfish/
  7. bn256/
  8. cast5/
  9. chacha20/
  10. chacha20poly1305/
  11. cryptobyte/
  12. curve25519/
  13. ed25519/
  14. hkdf/
  15. internal/
  16. md4/
  17. nacl/
  18. ocsp/
  19. openpgp/
  20. otr/
  21. pbkdf2/
  22. pkcs12/
  23. poly1305/
  24. ripemd160/
  25. salsa20/
  26. scrypt/
  27. sha3/
  28. ssh/
  29. tea/
  30. twofish/
  31. x509roots/
  32. xtea/
  33. xts/
  34. .gitattributes
  35. .gitignore
  36. codereview.cfg
  37. CONTRIBUTING.md
  38. go.mod
  39. go.sum
  40. LICENSE
  41. PATENTS
  42. README.md
README.md

Go Cryptography

Go Reference

This repository holds supplementary Go cryptography packages.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://go.dev/doc/contribute.

The git repository is https://go.googlesource.com/crypto.

The main issue tracker for the crypto repository is located at https://go.dev/issues. Prefix your issue with “x/crypto:” in the subject line, so it is easy to find.

Note that contributions to the cryptography package receive additional scrutiny due to their sensitive nature. Patches may take longer than normal to receive feedback.