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Fencer Intel
low 3.7

CVE-2020-11080 json

Denial of service in nghttp2

published 6y ago modified 2mo ago also BIT-node-2020-11080 , BIT-node-min-2020-11080 , EUVD-2020-3444 , GHSA-q5wr-xfw9-q7xr , JLSEC-2026-1

cvss
3.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.

Patch / fix

  • bitnami node 10.21.0, 12.18.0, 14.4.1
  • bitnami node-min 10.12.1, 10.21.0, 12.12.1, 12.18.0, 14.4.1
  • julia nghttp2_jll 1.41.0+0
  • nghttp2 nghttp2 1.41.0
  • oracle blockchain_platform 21.1.2
  • nodejs node.js 10.21.0, 12.18.0
  • nodejs Debian 14, Debian 13, Debian 12 10.21.0~dfsg-1
  • nghttp2 Debian 14, Debian 13, Debian 12 1.41.0-1

debian advisories DEBIAN-CVE-2020-11080

  • nghttp2 Ubuntu 20.04 LTS 1.40.0-1ubuntu0.1
  • nghttp2 Ubuntu Pro 16.04 LTS 1.7.1-1ubuntu0.1~esm1
  • nghttp2 Ubuntu Pro 18.04 LTS 1.30.0-1ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2020-11080

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nodejs-nodemon RHEL 8, RHEL 8.1 EUS 1.18.3-1.module+el8.1.0+3369+37ae6a45
  • nodejs-packaging RHEL 8, RHEL 8.1 EUS 17-3.module+el8.1.0+3369+37ae6a45
  • npm RHEL 8 1:6.14.4-1.10.21.0.3.module+el8.2.0+7071+d2377ea3
  • nodejs RHEL 8 1:10.21.0-3.module+el8.2.0+7071+d2377ea3
  • nodejs-nodemon RHEL 8, RHEL 8.1 EUS, RHEL 8.0 E4S 1.18.3-1.module+el8+2632+6c5111ed
  • nodejs-full-i18n RHEL 8 1:10.21.0-3.module+el8.2.0+7071+d2377ea3
  • nodejs-packaging RHEL 8, RHEL 8.1 EUS, RHEL 8.0 E4S 17-3.module+el8+2873+aa7dfd9a
  • jbcs-httpd24-curl jboss core services 1 7.64.1-36.jbcs.el6

red hat advisories RHSA-2020:2847RHSA-2020:2848RHSA-2020:3042RHSA-2020:2644RHSA-2020:3084RHSA-2020:2895

  • nghttp2 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +13 more 1.39.2-3.5.1
  • nghttp2 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +10 more 1.40.0-3.11.1
  • nghttp2 SLE Module for Basesystem 15 SP2, SLE Micro 5.0 1.40.0-3.5.1
  • nodejs8 SLE Module for Web and Scripting 15 SP2 8.17.0-10.3.1
  • nodejs12 SLE Module for Web and Scripting 12 12.18.0-1.14.1
  • nodejs8 SLES for SAP 15, SLES 15-LTSS, SLE Module for Web and Scripting 15 SP1 +2 more 8.17.0-3.32.1
  • nodejs10 SLE Module for Web and Scripting 12 10.21.0-1.24.1
  • nodejs10 SLES for SAP 15, SLES 15-LTSS, SLE Module for Web and Scripting 15 SP2 +3 more 10.21.0-1.21.1

suse advisories SUSE-SU-2021:0932-1SUSE-SU-2021:0931-1SUSE-SU-2021:0930-1SUSE-SU-2020:2800-1SUSE-SU-2020:1606-1SUSE-SU-2020:1576-1

  • nghttp2 openSUSE Tumbleweed 1.43.0-1.6
  • nodejs14 openSUSE Tumbleweed 14.17.5-1.2
  • nghttp2 openSUSE Leap 15.2 1.40.0-lp152.2.6.1
  • nghttp2-python openSUSE Leap 15.2 1.40.0-lp152.2.6.1
  • nodejs8 openSUSE Leap 15.1 8.17.0-lp151.2.15.1

opensuse advisories openSUSE-SU-2024:11091-1openSUSE-SU-2024:11096-1openSUSE-SU-2021:0468-1openSUSE-SU-2020:0802-1

  • nodejs-nodemon AlmaLinux 8 1.18.3-1.module_el8.3.0+2023+d2377ea3
  • nodejs-nodemon AlmaLinux 8 1.18.3-1.module_el8.3.0+2047+b07ac28e
  • nodejs-packaging AlmaLinux 8 17-3.module_el8.4.0+2224+b07ac28e
  • nodejs-packaging AlmaLinux 8 17-3.module_el8.4.0+2521+c668cc9f
  • nodejs-packaging AlmaLinux 8 17-3.module_el8.3.0+2023+d2377ea3
  • nghttp2 AlmaLinux 8 1.33.0-3.el8_2.1
  • libnghttp2 AlmaLinux 8 1.33.0-3.el8_2.1

almalinux advisories ALSA-2020:2852ALSA-2020:2848ALSA-2020:2755

  • nodejs-nodemon Rocky Linux 8 1.18.3-1.module+el8.3.0+101+f84c7154
  • nodejs-packaging Rocky Linux 8 17-3.module+el8.3.0+101+f84c7154
  • nghttp2 Rocky Linux 8 1.33.0-3.el8_3.1

rocky linux advisories RLSA-2020:2852RLSA-2020:2848RLSA-2020:2755

  • nodejs Alpine 3.11 12.20.1-r0
  • nodejs Alpine 3.12 12.18.3-r0
  • nodejs Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 12.18.0-r0
  • nghttp2 Alpine 3.10 1.39.2-r1
  • nghttp2 Alpine 3.11 1.40.0-r1
  • nghttp2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 1.41.0-r0
  • nghttp2 Alpine 3.9 1.35.1-r2
  • nodejs-current Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 14.4.0-r0

alpine advisories ALPINE-CVE-2020-11080

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-11080 updated cvss 7.5

nghttp2: overly large SETTINGS frames can lead to DoS

  • Red Hat OpenShift Service Mesh 1.0 servicemesh-proxy 1.0.10-3.el8
    fixed: vendor fix RHSA-2020:2524
  • Red Hat OpenShift Service Mesh 1.1 servicemesh-proxy 1.1.2-3.el8
    fixed: vendor fix RHSA-2020:2523
  • Red Hat CodeReady Linux Builder (v. 8) nghttp2 1.33.0-3.el8_2.1
    fixed: vendor fix RHSA-2020:2755
  • Red Hat CodeReady Linux Builder EUS (v. 8.1) nghttp2 1.33.0-3.el8_1.1
    fixed: vendor fix RHSA-2020:2823
  • Red Hat Enterprise Linux AppStream (v. 8) nodejs 10.21.0-3.module+el8.2.0+7071+d2377ea3, nodejs 12.18.2-1.module+el8.2.0+7233+61d664c1, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, nodejs-packaging 17-3.module+el8.1.0+3369+37ae6a45, npm 6.14.4-1.10.21.0.3.module+el8.2.0+7071+d2377ea3, +4 more
    fixed: vendor fix RHSA-2020:2848
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) nodejs 10.21.0-3.module+el8.0.0+7067+054302d1, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, npm 6.14.4-1.10.21.0.3.module+el8.0.0+7067+054302d1, nodejs-full-i18n 10.21.0-3.module+el8.0.0+7067+054302d1
    fixed: vendor fix RHSA-2020:3042
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) nodejs 10.21.0-3.module+el8.1.0+7070+fe09e702, nodejs 12.18.2-1.module+el8.1.0+7232+f8b5ede5, nodejs-packaging 17-3.module+el8+2873+aa7dfd9a, nodejs-nodemon 1.18.3-1.module+el8+2632+6c5111ed, nodejs-packaging 17-3.module+el8.1.0+3369+37ae6a45, npm 6.14.4-1.10.21.0.3.module+el8.1.0+7070+fe09e702, +4 more
    fixed: vendor fix RHSA-2020:2849
  • Red Hat Enterprise Linux BaseOS (v. 8) nghttp2 1.33.0-3.el8_2.1, libnghttp2 1.33.0-3.el8_2.1
    fixed: vendor fix RHSA-2020:2755
show 6 more
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.0) nghttp2 1.33.0-1.el8_0.2, libnghttp2 1.33.0-1.el8_0.2
    fixed: vendor fix RHSA-2020:2850
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) nghttp2 1.33.0-3.el8_1.1, libnghttp2 1.33.0-3.el8_1.1
    fixed: vendor fix RHSA-2020:2823
  • Red Hat JBoss Core Services
    fixed: vendor fix RHSA-2020:2646
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-curl 7.64.1-36.jbcs.el6, jbcs-httpd24-httpd 2.4.37-57.jbcs.el6, jbcs-httpd24-mod_md 2.0.8-24.jbcs.el6, jbcs-httpd24-libcurl 7.64.1-36.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.37-57.jbcs.el6, jbcs-httpd24-nghttp2 1.39.2-25.jbcs.el6, +12 more Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-curl 7.64.1-36.jbcs.el7, jbcs-httpd24-httpd 2.4.37-57.jbcs.el7, jbcs-httpd24-mod_md 2.0.8-24.jbcs.el7, jbcs-httpd24-libcurl 7.64.1-36.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.37-57.jbcs.el7, jbcs-httpd24-nghttp2 1.39.2-25.jbcs.el7, +13 more
    fixed: vendor fix RHSA-2020:2644
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-nghttp2 1.7.1-8.el6.1, httpd24-libnghttp2 1.7.1-8.el6.1 Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-nghttp2 1.7.1-8.el7.1, httpd24-libnghttp2 1.7.1-8.el7.1, rh-nodejs10-nodejs 10.21.0-3.el7, rh-nodejs12-nodejs 12.18.2-1.el7, rh-nodejs10-npm 6.14.4-10.21.0.3.el7, rh-nodejs12-npm 6.14.5-12.18.2.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) httpd24-nghttp2 1.7.1-8.el7.1, httpd24-libnghttp2 1.7.1-8.el7.1, rh-nodejs10-nodejs 10.21.0-3.el7, rh-nodejs12-nodejs 12.18.2-1.el7, rh-nodejs10-npm 6.14.4-10.21.0.3.el7, rh-nodejs12-npm 6.14.5-12.18.2.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) httpd24-nghttp2 1.7.1-8.el7.1, httpd24-libnghttp2 1.7.1-8.el7.1, rh-nodejs10-nodejs 10.21.0-3.el7, rh-nodejs12-nodejs 12.18.2-1.el7, rh-nodejs10-npm 6.14.4-10.21.0.3.el7, rh-nodejs12-npm 6.14.5-12.18.2.1.el7 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-nghttp2 1.7.1-8.el6.1, httpd24-libnghttp2 1.7.1-8.el6.1 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-nghttp2 1.7.1-8.el7.1, httpd24-libnghttp2 1.7.1-8.el7.1, rh-nodejs10-nodejs 10.21.0-3.el7, rh-nodejs12-nodejs 12.18.2-1.el7, rh-nodejs10-npm 6.14.4-10.21.0.3.el7, rh-nodejs12-npm 6.14.5-12.18.2.1.el7
    fixed: vendor fix RHSA-2020:2784
  • Red Hat Enterprise Linux 8 npm, nodejs, nodejs-libs, nodejs-nodemon, nodejs-full-i18n, nodejs-packaging, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-22-090-02 updated cvss 7.5

Hitachi Energy e-mesh EMS

  • Hitachi Energy e-mesh EMS 1
    affected: mitigation “Hitachi Energy recommends users update to e-mesh: EMS 1.0.1 or later.” search.abb.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

5.32% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami node
>=10.13.0, <10.21.0
>=12.13.0, <12.18.0
>=14.0.0, <14.4.1
10.21.0
12.18.0
14.4.1
bitnami node-min
>=10.0.0, <10.12.1
>=10.13.0, <10.21.0
>=12.0.0, <12.12.1
>=12.13.0, <12.18.0
>=14.0.0, <14.4.1
10.12.1
10.21.0
12.12.1
12.18.0
14.4.1
julia nghttp2_jll
<1.41.0+0
1.41.0+0

Affected products

  • nghttp2 nghttp2

Classification

Weakness
  • CWE-707 Improper Neutralization
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.