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@renovate renovate bot commented Dec 12, 2024

This PR contains the following updates:

Package Change Age Confidence
golang.org/x/crypto v0.19.0 -> v0.35.0 age confidence

GitHub Vulnerability Alerts

CVE-2024-45337

Applications and libraries which misuse the ServerConfig.PublicKeyCallback callback may be susceptible to an authorization bypass.

The documentation for ServerConfig.PublicKeyCallback says that "A call to this function does not guarantee that the key offered is in fact used to authenticate." Specifically, the SSH protocol allows clients to inquire about whether a public key is acceptable before proving control of the corresponding private key. PublicKeyCallback may be called with multiple keys, and the order in which the keys were provided cannot be used to infer which key the client successfully authenticated with, if any. Some applications, which store the key(s) passed to PublicKeyCallback (or derived information) and make security relevant determinations based on it once the connection is established, may make incorrect assumptions.

For example, an attacker may send public keys A and B, and then authenticate with A. PublicKeyCallback would be called only twice, first with A and then with B. A vulnerable application may then make authorization decisions based on key B for which the attacker does not actually control the private key.

Since this API is widely misused, as a partial mitigation golang.org/x/crypto@v0.31.0 enforces the property that, when successfully authenticating via public key, the last key passed to ServerConfig.PublicKeyCallback will be the key used to authenticate the connection. PublicKeyCallback will now be called multiple times with the same key, if necessary. Note that the client may still not control the last key passed to PublicKeyCallback if the connection is then authenticated with a different method, such as PasswordCallback, KeyboardInteractiveCallback, or NoClientAuth.

Users should be using the Extensions field of the Permissions return value from the various authentication callbacks to record data associated with the authentication attempt instead of referencing external state. Once the connection is established the state corresponding to the successful authentication attempt can be retrieved via the ServerConn.Permissions field. Note that some third-party libraries misuse the Permissions type by sharing it across authentication attempts; users of third-party libraries should refer to the relevant projects for guidance.

CVE-2025-22869

SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.

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renovate bot commented Dec 12, 2024

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

  • 6 additional dependencies were updated

Details:

Package Change
golang.org/x/sys v0.17.0 -> v0.28.0
golang.org/x/mod v0.15.0 -> v0.17.0
golang.org/x/net v0.20.0 -> v0.25.0
golang.org/x/sync v0.6.0 -> v0.10.0
golang.org/x/text v0.14.0 -> v0.21.0
golang.org/x/tools v0.17.0 -> v0.21.1-0.20240508182429-e35e4ccd0d2d

@renovate renovate bot force-pushed the renovate/go-golang.org-x-crypto-vulnerability branch from 8b14e79 to 9a0de08 Compare April 14, 2025 20:06
@renovate renovate bot changed the title fix(deps): update module golang.org/x/crypto to v0.31.0 [security] fix(deps): update module golang.org/x/crypto to v0.35.0 [security] Apr 14, 2025
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renovate bot commented Apr 14, 2025

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: go.sum
Command failed: go get -t ./...
go: module golang.org/x/crypto@v0.35.0 requires go >= 1.23.0; switching to go1.24.6
go: downloading go1.24.6 (linux/amd64)
go: download go1.24.6: golang.org/toolchain@v0.0.1-go1.24.6.linux-amd64: verifying module: checksum database disabled by GOSUMDB=off

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