CVE-2020-11080

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2020-11080
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-06-03T23:15:11
  • Last Modified Date
  • 2022-08-29T20:41:12
Weakness Enumerations
CWE URL
CWE-707 http://cwe.mitre.org/data/definitions/707.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:* 1 OR 1.41.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:banking_extensibility_workbench:14.3.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:banking_extensibility_workbench:14.4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:* 1 OR 21.1.2
cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:graalvm:19.3.2:*:*:*:enterprise:*:*:* 1 OR
cpe:2.3:a:oracle:graalvm:20.1.0:*:*:*:enterprise:*:*:* 1 OR
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 7.3.0 7.3.30
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 7.4.0 7.4.29
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 7.5.0 7.5.19
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 7.6.0 7.6.15
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:* 1 OR 8.0.0 8.0.21
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* 1 OR 10.0.0 10.12.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* 1 OR 10.13.0 10.21.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* 1 OR 12.0.0 12.12.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* 1 OR 12.13.0 12.18.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* 1 OR 14.0.0 14.4.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html Mailing List Third Party Advisory
https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090 Patch Third Party Advisory
https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394 Patch Third Party Advisory
https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4696 Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Not Applicable Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-11080
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11080
History
Created Old Value New Value Data Type Notes
2022-04-04 00:39:04 Added to TrackCVE
2022-12-04 17:20:45 2020-06-03T23:15Z 2020-06-03T23:15:11 CVE Published Date updated
2022-12-04 17:20:45 2022-08-29T20:41:12 CVE Modified Date updated
2022-12-04 17:20:45 Analyzed Vulnerability Status updated
2022-12-04 17:20:49 References updated