VDB

CVE-2021-44716

CVE-2021-44716 PUBLISHED CVSS 7.5 HIGH

golang.org/x/net/http2 allows uncontrolled memory consumption

Reported by mitre · Published January 1, 2022

golang.org/x/net/http2 is fixed in 0.0.0-20211209124913-491a49abca63 (Go Modules)

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
stdlibGo Modules1.17.5, 1.16.12
golang.org/x/net/http2Go Modules0.0.0-20211209124913-491a49abca63
golang-miscAmazon Linux1.16.15-1.amzn2.0.1
golangBitnami1.17.5, 1.16.12
golangAmazon Linux1.19.3-2.amzn2023.0.2
golang-testsAmazon Linux1.19.3-2.amzn2023.0.2, 1.16.15-1.amzn2.0.1
goAlpine1.17.9-r0, 1.17.6-r0, 1.16.15-r0
golang-srcAmazon Linux1.19.3-2.amzn2023.0.2
golang-sharedAmazon Linux1.19.3-2.amzn2023.0.2
golang-raceAmazon Linux1.19.3-2.amzn2023.0.2, 1.16.15-1.amzn2.0.1
golang-docsAmazon Linux1.16.15-1.amzn2.0.1
goArch Linux2:1.17.5-1

2 more packages have a fixed version. See every fix in Lookup.

Risk scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersions
n/an/an/a
amazon:2golang-misc0
amazon:2023golang0
amazon:2golang-tests0
alpinego0, 0, 0
amazon:2023golang-src0
golang.orgx/net/http20
amazon:2023golang-shared0
amazon:2golang-race0
amazon:2023golang-tests0
amazon:2golang-docs0
amazon:2023golang-race0
archgo0
n/an/a*
amazon:2023golang-misc0
amazon:2golang-shared0
golanggo
amazon:2023golang-bin0
amazon:2golang-src0
amazon:2golang-bin0

…and 3 more

Timeline

  • Dec 15, 2021 CVE Published
  • Jan 1, 2022 EPSS Score (30 in total, the first dated here)
  • Mar 17, 2026 Security Advisory (53 in total, the first dated here)
  • Jul 16, 2026 Coalition ESS Score
  • Nov 3, 2026 Distribution Patch (46 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2021-44716
vulnetix vdb fixes CVE-2021-44716

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-44716/fixes/registry"

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