SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2022-41717

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

MEDIUM 5.3EPSS 5.62%

Does this matter?

Lower severity and a low EPSS score (5.62%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
5.62% probability · 93th percentile
CISA KEV
Not listed
Weakness
CWE-770
Affected
golang/go · golang/http2 · fedoraproject/fedora
Source
security@golang.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.