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GHSA-69cg-p879-7622 BIT-golang-2022-27664 CVE-2022-27664 GO-2022-0969

golang.org/x/net/http2 Denial of Service vulnerability

High Go
Severity
7.5 / 10
High · CVSS 3.1
Exploit chance (EPSS)
3.49%
Chance of exploitation in the next 30 days. Higher than 89.13% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
—
Not classified
Fix
Available
3 packages have a fixed version

Description

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.

Affected versions

Go

PackageVulnerableFixed in
golang.org/x/net
< 0.0.0-20220906165146-f3363e06e74c
0.0.0-20220906165146-f3363e06e74c
golang.org/x/net/http2
< 0.0.0-20220906165146-f3363e06e74c
0.0.0-20220906165146-f3363e06e74c
stdlib
< 1.18.6
>= 1.19.0-0, < 1.19.1
1.18.6
1.19.1

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

golang.org/x/net Go → 0.0.0-20220906165146-f3363e06e74c

go
go get golang.org/x/net@v0.0.0-20220906165146-f3363e06e74c && go mod tidy

golang.org/x/net/http2 Go → 0.0.0-20220906165146-f3363e06e74c

go
go get golang.org/x/net/http2@v0.0.0-20220906165146-f3363e06e74c && go mod tidy

stdlib Go → 1.19.1

go
go get stdlib@v1.19.1 && go mod tidy

Severity breakdown

CVSS 3.1 7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-4374-p667-p6c8
HTTP/2 rapid reset can cause excessive work in net/http
High Known exploited Also affects golang.org/x/net
GHSA-qppj-fm5r-hxr3
HTTP/2 Stream Cancellation Attack
Medium Known exploited Also affects golang.org/x/net
CVE-2020-0601
Certificate validation bypass on Windows in crypto/x509
High Known exploited Also affects stdlib
GO-2026-6866
Check all ancestor namespace transitions when rendering raw text in html in golang.org/x/net
Not rated yet Also affects golang.org/x/net
GO-2026-6860
Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net
Not rated yet Also affects golang.org/x/net
RUSTSEC-2026-0382
Distrust compromised intermediate certificates in crypto/x509
Medium Also affects stdlib
GO-2026-6613
HTTP/1 server connection desynchronization after 2xx CONNECT response in net/http
High Also affects stdlib
GO-2026-6609
Lack of limit on size of parsed Range headers in net/http
High Also affects stdlib

Credits: Anthony Gavazzi, Bahruz Jabiyev, Kaan Onarlioglu, Steven Sprecher, Tommaso Innocenti

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