chore(deps): update module golang.org/x/crypto to v0.45.0 [security]#1162
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This PR contains the following updates:
v0.21.0→v0.45.0golang.org/x/crypto/ssh allows an attacker to cause unbounded memory consumption
CVE-2025-58181 / GHSA-j5w8-q4qc-rx2x
More information
Details
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
golang.org/x/crypto/ssh/agent vulnerable to panic if message is malformed due to out of bounds read
CVE-2025-47914 / GHSA-f6x5-jh6r-wrfv
More information
Details
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Misuse of ServerConfig.PublicKeyCallback may cause authorization bypass in golang.org/x/crypto
CVE-2024-45337 / GHSA-v778-237x-gjrc / GO-2024-3321
More information
Details
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Misuse of connection.serverAuthenticate may cause authorization bypass in golang.org/x/crypto
CVE-2024-45337 / GHSA-v778-237x-gjrc / GO-2024-3321
More information
Details
Applications and libraries which misuse connection.serverAuthenticate (via callback field ServerConfig.PublicKeyCallback) 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/cry...@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.
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
golang.org/x/crypto Vulnerable to Denial of Service (DoS) via Slow or Incomplete Key Exchange
CVE-2025-22869 / GHSA-hcg3-q754-cr77 / GO-2025-3487
More information
Details
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Potential denial of service in golang.org/x/crypto
CVE-2025-22869 / GHSA-hcg3-q754-cr77 / GO-2025-3487
More information
Details
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.
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
Potential denial of service in golang.org/x/crypto/ssh/agent
CVE-2025-47913 / GHSA-56w8-48fp-6mgv / GO-2025-4116
More information
Details
SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
golang.org/x/crypto/ssh/agent vulnerable to panic if message is malformed due to out of bounds read
CVE-2025-47914 / GHSA-f6x5-jh6r-wrfv / GO-2025-4135
More information
Details
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
golang.org/x/crypto/ssh allows an attacker to cause unbounded memory consumption
CVE-2025-58181 / GHSA-j5w8-q4qc-rx2x / GO-2025-4134
More information
Details
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Unbounded memory consumption in golang.org/x/crypto/ssh
CVE-2025-58181 / GHSA-j5w8-q4qc-rx2x / GO-2025-4134
More information
Details
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
Malformed constraint may cause denial of service in golang.org/x/crypto/ssh/agent
CVE-2025-47914 / GHSA-f6x5-jh6r-wrfv / GO-2025-4135
More information
Details
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Severity
Unknown
References
This data is provided by OSV and the Go Vulnerability Database (CC-BY 4.0).
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