Home/CVE/An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contai
CVE

CVE-2022-41717

An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contai

An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.

MEDIUM · CVSS 5.3 EPSS 0.00331
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

4
golang go< 1.18.9
golang go>= 1.19.0 and < 1.19.4

Affected Packages

3
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go golang.org/x/net MODERATE fixed in 0.4.0
Go golang.org/x/net/http2 MODERATE fixed in 0.4.0
Go stdlib fixed in 1.18.9, 1.19.4

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@golang.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Dec 2022 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:14076-1
suse-csafopenSUSE-SU-2024:12552-1
suse-csafopenSUSE-SU-2024:12553-1
suse-csafopenSUSE-SU-2024:12615-1
suse-csafopenSUSE-SU-2024:13225-1
🔗

References & Sources

24
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://go.dev/cl/455635PatchVendor Advisory
https://go.dev/cl/455717PatchVendor Advisory
https://go.dev/issue/56350PatchThird Party Advisory
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