7.5

CVE-2021-44716: debian debian_linux Uncontrolled Resource Consumption

Modified
AliasesRHSA-2022:0001RHSA-2022:0002RHSA-2022:1628
Published 01-01-2022Last modified 04-08-2024

Vulnerability summary

CVE-2021-44716 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 4.25% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
4.25%
0%100%
Low · +0.30 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 24 · Related 10
DLA-2891-1DLA-2892-1DLA-3395-1MGASA-2021-0587OPENSUSE-SU-2021:1626-1OPENSUSE-SU-2021:4169-1

Timeline

  1. 01-01-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

4.25%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

Increase +0.30 pp

From 3.96% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat4 products
  • etcd< 0:3.3.23-9.el7rhgs
  • etcd-debuginfo< 0:3.3.23-9.el7rhgs
  • grafana< 0:7.5.9-5.el8_5 | < 0:7.3.6-4.el8_4 | < 0:5.2.4-5.el7rhgs
  • grafana-debuginfo< 0:7.5.9-5.el8_5 | < 0:7.3.6-4.el8_4
Ubuntu4 products
  • golang-1.17All versions (No fix recorded)
  • golang-1.8All versions (No fix recorded)
  • golang-golang-x-net-devAll versions (No fix recorded)
  • google-guest-agentAll versions (No fix recorded) | < 20231004.02-0ubuntu1~20.04.3 | < 20231004.02-0ubuntu1~22.04.3
Alpine2 products
  • go≥ 1.17.0, < 1.16.15-r0 | ≥ 1.17.0, < 1.17.9-r0 | ≥ 1.17.0, < 1.17.6-r0
  • nomad< 1.1.12-r0 | < 1.2.6-r0
Debian2 products
  • golang-golang-x-net< 1:0.0+git20211209.491a49a+dfsg-1
  • debian_linuxEOL9.0
Go1 product
  • stdlib≥ 1.17.0-0, < 1.17.5
Golang1 product
  • go< 1.16.12 | ≥ 1.17.0, < 1.17.5
Golang.org/x1 product
  • net< 0.0.0-20211209124913-491a49abca63
Golang.org/x/net1 product
  • http2< 0.0.0-20211209124913-491a49abca63
Netapp1 product

9 vendors · 17 products

References

28 links
Show all 28 references