CVE-2023-39325

Aliases:CGA-c883-3x62-q4fwBIT-golang-2023-39325CGA-m3p7-vc9x-9mvfCGA-rvxr-6g26-7h84GHSA-4374-p667-p6c8GO-2023-2102
Advisory lineage Upstream: 0 Downstream: 72
Modified
Published: 11 Oct 2023, 21:15
Last modified:13 Feb 2025, 17:02

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.15% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 Oct 2023, 21:15
Published
Vulnerability first disclosed
13 Feb 2025, 17:02
Last Modified
Vulnerability information updated

Description

A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2. The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.15%• Percentile: 35%

Techniques & Countermeasures

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

  • chainguard•cluster-autoscaler-1.26

    < 1.26.4-r3

  • chainguard•cluster-autoscaler-1.26-compat

    < 1.26.4-r3

  • chainguard•cluster-autoscaler-1.27

    < 1.27.3-r5

  • chainguard•cluster-autoscaler-1.27-compat

    < 1.27.3-r5

  • chainguard•cluster-autoscaler-1.28

    < 1.28.0-r5

  • chainguard•cluster-autoscaler-1.28-compat

    < 1.28.0-r5

  • wolfi•cluster-autoscaler-1.26

    < 1.26.4-r3

  • wolfi•cluster-autoscaler-1.26-compat

    < 1.26.4-r3

  • wolfi•cluster-autoscaler-1.27

    < 1.27.3-r5

  • wolfi•cluster-autoscaler-1.27-compat

    < 1.27.3-r5

  • wolfi•cluster-autoscaler-1.28

    < 1.28.0-r5

  • wolfi•cluster-autoscaler-1.28-compat

    < 1.28.0-r5

  • fedoraproject•fedora

    37 | 38 | 39

  • go standard library•net/http

    < 1.20.10 | ≥ 1.21.0-0, < 1.21.3

  • golang•go

    ≥ 1.20.0, < 1.20.10 | ≥ 1.21.0, < 1.21.3

  • golang.org/x•net

    < 0.17.0

  • golang•http2

    < 0.17.0

  • Go•stdlib

    ≥ 1.21.0-0, < 1.21.3

  • golang.org/x/net•golang.org/x/net/http2

    < 0.17.0

  • netapp•astra_trident

    na

  • netapp•astra_trident_autosupport

    na

References (83)