CVE-2022-27664: Golang.org/x/net Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-69cg-p879-7622
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CVSS 7.5
Published
Advisory Summary

CVE-2022-27664 is a HIGH (CVSS 7.5) denial of service vulnerability (General Security Weakness) affecting Golang.org/x/net libraries in the Go ecosystem. The issue involves golang.org/x/net/http2 denial of service vulnerability. Remediation is available by upgrading affected packages to version 0.0.0-20220906165146-f3363e06e74c.

CVE-2022-27664 at a Glance

CVE Identifier CVE-2022-27664
GHSA Identifier GHSA-69cg-p879-7622
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Golang.org/x/net
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-27664

To remediate this vulnerability, upgrade all affected Golang.org/x/net dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

golang.org/x/net fixed: 0.0.0-20220906165146-f3363e06e74c 
Upgrade golang.org/x/net to 0.0.0-20220906165146-f3363e06e74c
golang.org/x/net/http2 fixed: 0.0.0-20220906165146-f3363e06e74c 
Upgrade golang.org/x/net/http2 to 0.0.0-20220906165146-f3363e06e74c
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for golang.org/x/net

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-27664, inspect your project dependencies for Golang.org/x/net:

inspect dependencies for golang.org/x/net

Analyze the terminal output to locate any version of Golang.org/x/net in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.0-20220906165146-f3363e06e74c), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Golang.org/x/net, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.

CVE-2022-27664 Affected Golang.org/x/net Versions

2 component(s)
Fixed Versions:
0.0.0-20220906165146-f3363e06e74c
Product / Package Ecosystem Affected Versions Fixed Version
golang.org/x/net
golang/golang.org/x/net
Go
< 0.0.0-20220906165146-f3363e06e74c
0.0.0-20220906165146-f3363e06e74c
golang.org/x/net/http2
golang/golang.org/x/net/http2
Go
< 0.0.0-20220906165146-f3363e06e74c
0.0.0-20220906165146-f3363e06e74c

References

go.dev/cl/428735 WEB
https://go.dev/cl/428735
NVD — CVE-2022-27664 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27664
cs.opensource.google/go/x/net PACKAGE
https://cs.opensource.google/go/x/net
go.dev/issue/54658 WEB
https://go.dev/issue/54658
groups.google.com/g/golang-announce WEB
https://groups.google.com/g/golang-announce
groups.google.com/g/golang-announce/c... WEB
https://groups.google.com/g/golang-announce/c/x49AQzIVX-s
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXKTHIGE5F576MAPFYCIJXNRGBSPISUF
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXS2OQ57KZC5XZKK5UW4SYKPVQAHIOJX
pkg.go.dev/vuln/go-2022-0969 WEB
https://pkg.go.dev/vuln/GO-2022-0969
Golang.org/x/net Security Information SECURITY
https://security.gentoo.org/glsa/202209-26
Golang.org/x/net Security Information SECURITY
https://security.netapp.com/advisory/ntap-20220923-0004

Frequently Asked Questions

What is CVE-2022-27664?
CVE-2022-27664 is a security vulnerability in Golang.org/x/net involving golang.org/x/net/http2 Denial of Service vulnerability under General Security Weakness.
Which Golang.org/x/net versions are affected?
Affected versions include releases prior to 0.0.0-20220906165146-f3363e06e74c across affected packages: golang.org/x/net, golang.org/x/net/http2.
What version fixes CVE-2022-27664?
Upgrading to 0.0.0-20220906165146-f3363e06e74c (or the latest patched release for your respective branch) resolves the vulnerability.
Is golang.org/x/net affected?
Yes, golang.org/x/net is affected in releases prior to 0.0.0-20220906165146-f3363e06e74c. Upgrade your dependency to 0.0.0-20220906165146-f3363e06e74c or later.
Is golang.org/x/net/http2 affected?
Yes, golang.org/x/net/http2 is affected in releases prior to 0.0.0-20220906165146-f3363e06e74c. Upgrade your dependency to 0.0.0-20220906165146-f3363e06e74c or later.
What is the CVSS score of CVE-2022-27664?
CVE-2022-27664 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-27664?
CVE-2022-27664 is classified under General Security Weakness.
How can I check Go dependencies for CVE-2022-27664?
Run the dependency tree command: 'inspect dependencies for golang.org/x/net'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-69cg-p879-7622",
  "modified" : "2024-05-20T21:33:38Z",
  "published" : "2022-09-07T00:01:51Z",
  "aliases" : [ "CVE-2022-27664" ],
  "summary" : "golang.org/x/net/http2 Denial of Service vulnerability",
  "details" : "In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
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      "name" : "golang.org/x/net"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.0-20220906165146-f3363e06e74c"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "golang.org/x/net/http2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.0-20220906165146-f3363e06e74c"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-27664"
  }, {
    "type" : "PACKAGE",
    "url" : "https://cs.opensource.google/go/x/net"
  }, {
    "type" : "WEB",
    "url" : "https://go.dev/cl/428735"
  }, {
    "type" : "WEB",
    "url" : "https://go.dev/issue/54658"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/g/golang-announce"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/g/golang-announce/c/x49AQzIVX-s"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXKTHIGE5F576MAPFYCIJXNRGBSPISUF"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXS2OQ57KZC5XZKK5UW4SYKPVQAHIOJX"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2022-0969"
  }, {
    "type" : "WEB",
    "url" : "https://security.gentoo.org/glsa/202209-26"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20220923-0004"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-18T00:05:31Z",
    "nvd_published_at" : "2022-09-06T18:15:00Z"
  }
}