CVE-2025-22869 (GCVE-0-2025-22869)

Vulnerability from cvelistv5 – Published: 2025-02-26 03:07 – Updated: 2025-04-11 22:03
VLAI
Title
Potential denial of service in golang.org/x/crypto
Summary
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
Go
References
Impacted products
Vendor Product Version
golang.org/x/crypto golang.org/x/crypto/ssh Affected: 0 , < 0.35.0 (semver)
Create a notification for this product.
Credits
Yuichi Watanabe
Show details on NVD website
To clipboard 

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              "userInteraction": "NONE",
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            {
              "name": "handshakeTransport.kexLoop"
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            {
              "name": "handshakeTransport.writePacket"
            },
            {
              "name": "Client.Dial"
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            {
              "name": "Client.DialContext"
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            {
              "name": "Client.DialTCP"
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            {
              "name": "Client.Listen"
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            {
              "name": "Client.ListenTCP"
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            {
              "name": "Client.ListenUnix"
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            {
              "name": "Client.NewSession"
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            {
              "name": "Dial"
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              "name": "DiscardRequests"
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            {
              "name": "NewClient"
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            {
              "name": "NewClientConn"
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              "name": "Request.Reply"
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              "name": "Session.Close"
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              "name": "Session.WindowChange"
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              "name": "channel.Accept"
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            {
              "name": "channel.Close"
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            {
              "name": "channel.CloseWrite"
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            {
              "name": "channel.Read"
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            {
              "name": "channel.ReadExtended"
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              "name": "channel.Reject"
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            {
              "name": "channel.SendRequest"
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            {
              "name": "channel.Write"
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            {
              "name": "channel.WriteExtended"
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            {
              "name": "connection.SendAuthBanner"
            },
            {
              "name": "curve25519sha256.Client"
            },
            {
              "name": "curve25519sha256.Server"
            },
            {
              "name": "dhGEXSHA.Client"
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              "name": "dhGEXSHA.Server"
            },
            {
              "name": "dhGroup.Client"
            },
            {
              "name": "dhGroup.Server"
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            {
              "name": "ecdh.Client"
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            {
              "name": "ecdh.Server"
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            {
              "name": "extChannel.Read"
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            {
              "name": "extChannel.Write"
            },
            {
              "name": "mux.OpenChannel"
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            {
              "name": "mux.SendRequest"
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            {
              "name": "sessionStdin.Close"
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            {
              "name": "sshClientKeyboardInteractive.Challenge"
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              "name": "tcpListener.Accept"
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.