Unrated severityNVD Advisory· Published Jun 3, 2020· Updated Jun 9, 2025
Denial of service in nghttp2
CVE-2020-11080
Description
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.
Affected products
65- osv-coords64 versionspkg:apk/chainguard/mysql-8.0pkg:apk/chainguard/mysql-8.0-bitnami-compatpkg:apk/chainguard/mysql-8.0-clientpkg:apk/chainguard/mysql-8.0-devpkg:apk/chainguard/mysql-8.0-iamguarded-compatpkg:apk/chainguard/mysql-8.0-oci-entrypointpkg:apk/chainguard/mysql-8.0-oci-entrypoint-compatpkg:bitnami/nodepkg:bitnami/node-minpkg:rpm/almalinux/libnghttp2pkg:rpm/almalinux/libnghttp2-develpkg:rpm/almalinux/nghttp2pkg:rpm/almalinux/nodejs-nodemonpkg:rpm/almalinux/nodejs-packagingpkg:rpm/opensuse/nghttp2&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/nghttp2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/nghttp2-python&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/nodejs14&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/nodejs8&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/nghttp2&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/nghttp2&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/nghttp2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/nghttp2&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/nghttp2&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/nghttp2&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/nghttp2&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/nghttp2&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/nghttp2&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/nghttp2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/nghttp2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP1pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP2pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/nodejs12&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP1pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP2pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015
< 8.0.38-r0+ 63 more
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: < 8.0.38-r0
- (no CPE)range: >= 10.13.0, < 10.21.0
- (no CPE)range: >= 10.0.0, < 10.12.1
- (no CPE)range: < 1.33.0-3.el8_2.1
- (no CPE)range: < 1.33.0-3.el8_2.1
- (no CPE)range: < 1.33.0-3.el8_2.1
- (no CPE)range: < 1.18.3-1.module_el8.3.0+2023+d2377ea3
- (no CPE)range: < 17-3.module_el8.4.0+2224+b07ac28e
- (no CPE)range: < 1.40.0-lp152.2.6.1
- (no CPE)range: < 1.43.0-1.6
- (no CPE)range: < 1.40.0-lp152.2.6.1
- (no CPE)range: < 14.17.5-1.2
- (no CPE)range: < 8.17.0-lp151.2.15.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.5.1
- (no CPE)range: < 1.40.0-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.40.0-3.11.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 1.39.2-3.5.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 10.21.0-1.24.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 10.21.0-1.21.1
- (no CPE)range: < 12.18.0-1.14.1
- (no CPE)range: < 8.17.0-3.32.1
- (no CPE)range: < 8.17.0-3.32.1
- (no CPE)range: < 8.17.0-3.32.1
- (no CPE)range: < 8.17.0-10.3.1
- (no CPE)range: < 8.17.0-3.32.1
- (no CPE)range: < 8.17.0-3.32.1
- nghttp2/nghttp2v5Range: < 1.41.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
14- lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.htmlmitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/mitrevendor-advisory
- www.debian.org/security/2020/dsa-4696mitrevendor-advisory
- lists.debian.org/debian-lts-announce/2021/10/msg00011.htmlmitremailing-list
- lists.debian.org/debian-lts-announce/2023/10/msg00023.htmlmitremailing-list
- github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090mitre
- github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394mitre
- github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xrmitre
- www.oracle.com//security-alerts/cpujul2021.htmlmitre
- www.oracle.com/security-alerts/cpuapr2022.htmlmitre
- www.oracle.com/security-alerts/cpujan2021.htmlmitre
- www.oracle.com/security-alerts/cpujul2020.htmlmitre
- www.oracle.com/security-alerts/cpuoct2020.htmlmitre
News mentions
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