CVE-2022-41717

medium

Published 2023-01-23 · Modified 2023-05-16

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CVSS v3

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

CVSS v4 NEW

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not yet in upstream

VIR risk

5.5

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.

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1:0.4.0+dfsg-1`
sid	Fixed	`1:0.4.0+dfsg-1`
forky	Fixed	`1:0.4.0+dfsg-1`
bullseye	Affected	—
bookworm	Fixed	`1.19.4-1`

AlmaLinux Fixed 2 releases

Version	Status	Fixed in
9	Fixed	`toolbox-tests-0.0.99.3-9.el9.aarch64.rpm`
8	Fixed	`osbuild-composer-75-1.el8.alma.aarch64.rpm`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	golang.org/x/net/http2	`<0.4.0`	`0.4.0`
Go	golang.org/x/net	`<0.4.0`	`0.4.0`
Go	stdlib	`>=1.19.0-0,<1.19.4`	`1.18.9`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.