CVE-2022-41717

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 v3.1

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

5.62% chance of exploitation in the next 30 days, 92th percentile

Published

2022-12-08

Updated

2025-02-13

Proof-of-concept exploits (1)

• domdom82/h2conn-exploit0★ · 2022-12-22

References

• CVE Record
• NVD entry

Related

• CVE-2022-41697
• CVE-2022-41723
• CVE-2022-41684
• CVE-2022-4174
• CVE-2022-41678
• CVE-2022-41741