CVE-2021-44716

high

Published 2022-01-02 · Modified 2022-01-03

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CVSS v3

—

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.0

Description

net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.

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	—

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`2:1.17.5-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1:0.0+git20211209.491a49a+dfsg-1`
sid	Fixed	`1:0.0+git20211209.491a49a+dfsg-1`
forky	Fixed	`1:0.0+git20211209.491a49a+dfsg-1`
bullseye	Fixed	`1.15.15-1~deb11u2`
bookworm	Fixed	`1:0.0+git20211209.491a49a+dfsg-1`

Red Hat Fixed 1 release

Version	Status	Fixed in
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	`<0.0.0-20211209124913-491a49abca63`	`0.0.0-20211209124913-491a49abca63`
Go	stdlib	`>=1.17.0-0,<1.17.5`	`1.16.12`
Go	golang.org/x/net	`<0.0.0-20211209124913-491a49abca63`	`0.0.0-20211209124913-491a49abca63`

References

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

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