CVE-2020-11080

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.

CVSS v3 3.7 LOW
CVSS v2.0 5.0 MEDIUM

3.7^/10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
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.debian.org/debian-lts-announce/2023/10/msg00023.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
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
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.debian.org/debian-lts-announce/2023/10/msg00023.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration 3 (hide)

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Configuration 4 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:33:::::::*

Configuration 5 (hide)

OR	cpe:2.3:a:oracle:banking_extensibility_workbench:14.3.0:::::::*
	cpe:2.3:a:oracle:banking_extensibility_workbench:14.4.0:::::::*
	cpe:2.3:a:oracle:blockchain_platform::::::::
	cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:::::::*
	cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:::::::*
	cpe:2.3:a:oracle:graalvm:19.3.2::::enterprise:::
	cpe:2.3:a:oracle:graalvm:20.1.0::::enterprise:::
	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::

Configuration 6 (hide)

OR	cpe:2.3:a:nodejs:node.js:::::-:::*
	cpe:2.3:a:nodejs:node.js:::::lts:::*
	cpe:2.3:a:nodejs:node.js:::::-:::*
	cpe:2.3:a:nodejs:node.js:::::lts:::*
	cpe:2.3:a:nodejs:node.js:::::-:::*

History

21 Nov 2024, 04:56

12 May 2022, 15:00

Type	Values Removed	Values Added
References	~~(MISC) https://www.oracle.com/security-alerts/cpuapr2022.html -~~	(MISC) https://www.oracle.com/security-alerts/cpuapr2022.html - Patch, Third Party Advisory
CPE		cpe:2.3:a:oracle:blockchain_platform::::::::

20 Apr 2022, 00:15

Type	Values Removed	Values Added
References		(MISC) https://www.oracle.com/security-alerts/cpuapr2022.html -

01 Apr 2022, 15:42

Type	Values Removed	Values Added
CPE		cpe:2.3:o:debian:debian_linux:9.0:::::::*
References	~~(MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html -~~	(MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html - Mailing List, Third Party Advisory
References	~~(N/A) https://www.oracle.com//security-alerts/cpujul2021.html -~~	(N/A) https://www.oracle.com//security-alerts/cpujul2021.html - Not Applicable, Third Party Advisory

17 Oct 2021, 08:15

Type	Values Removed	Values Added
CWE	~~CWE-400~~
References		(MLIST) https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html - (N/A) https://www.oracle.com//security-alerts/cpujul2021.html -

Information

Published : 2020-06-03 23:15

Updated : 2024-11-21 04:56

NVD link : CVE-2020-11080

Mitre link : CVE-2020-11080

CVE.ORG link : CVE-2020-11080

JSON object : View

Products Affected

oracle

banking_extensibility_workbench
blockchain_platform
graalvm
enterprise_communications_broker
mysql

nodejs

node.js

debian

debian_linux

fedoraproject

fedora

nghttp2

nghttp2

opensuse

leap

CWE

CWE-707

Improper Neutralization

CWE-400

Uncontrolled Resource Consumption

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Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.oracle.com/security-alerts/cpujul2020.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.oracle.com/security-alerts/cpuoct2020.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-707"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En nghttp2 versiones anteriores a 1.41.0, la carga \u00fatil de la trama HTTP/2 SETTINGS demasiado grande causa una denegaci\u00f3n de servicio. El ataque de prueba de concepto involucra a un cliente malicioso que construye una trama SETTINGS con una longitud de 14,400 bytes (2400 entradas de configuraciones individuales) una y otra vez. El ataque causa que la CPU se aumente al 100%. nghttp2 versi\u00f3n v1.41.0 corrige esta vulnerabilidad. Existe una soluci\u00f3n alternativa a esta vulnerabilidad. Implemente la funci\u00f3n nghttp2_on_frame_recv_callback callback, y si la trama es recibida es la trama SETTINGS y el n\u00famero de entradas de configuraci\u00f3n es grande (por ejemplo, mayor a 32), luego desconecte la conexi\u00f3n"}], "lastModified": "2024-11-21T04:56:44.657", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6B8F12EE-F729-4A29-A21C-254E2E13B649", "versionEndExcluding": "1.41.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33"}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oracle:banking_extensibility_workbench:14.3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EABAFD73-150F-4DFE-B721-29EB4475D979"}, {"criteria": "cpe:2.3:a:oracle:banking_extensibility_workbench:14.4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DE57039D-E2EE-4014-A7B1-D7380D26098E"}, {"criteria": "cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D0DBC938-A782-433F-8BF1-CA250C332AA7", "versionEndExcluding": "21.1.2"}, {"criteria": "cpe:2.3:a:oracle:enterprise_communications_broker:3.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E11C65C3-1B17-4362-A99C-59583081A24D"}, {"criteria": "cpe:2.3:a:oracle:enterprise_communications_broker:3.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "348EEE70-E114-4720-AAAF-E77DE5C9A2D1"}, {"criteria": "cpe:2.3:a:oracle:graalvm:19.3.2:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "909B4029-1D4F-4D60-AC6D-98C7E9FF1B15"}, {"criteria": "cpe:2.3:a:oracle:graalvm:20.1.0:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "B501426C-7FB5-4C0D-83E4-0279746EFBE8"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D2F1144-F032-4687-8F76-1A4E45BCD8F3", "versionEndIncluding": "7.3.30", "versionStartIncluding": "7.3.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD5F19DF-F8E7-48B4-BBFA-22A0118584CB", "versionEndIncluding": "7.4.29", "versionStartIncluding": "7.4.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD7FA925-B9AC-4819-AAC1-C3478D80E3E7", "versionEndIncluding": "7.5.19", "versionStartIncluding": "7.5.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF828AB6-ED4E-4AA9-9E8D-58E715DBDB1D", "versionEndIncluding": "7.6.15", "versionStartIncluding": "7.6.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A885799-F19A-41B5-B015-B318ED959755", "versionEndIncluding": "8.0.21", "versionStartIncluding": "8.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "25A3180B-21AF-4010-9DAB-41ADFD2D8031", "versionEndIncluding": "10.12.0", "versionStartIncluding": "10.0.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "E9E9BD86-6374-45B3-8727-AACED7C8F3B9", "versionEndExcluding": "10.21.0", "versionStartIncluding": "10.13.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "564ED5C8-50D7-413A-B88E-E62B6C07336A", "versionEndIncluding": "12.12.0", "versionStartIncluding": "12.0.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "319C5BC0-7893-4FEC-8051-C8067F5007D0", "versionEndExcluding": "12.18.0", "versionStartIncluding": "12.13.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "7AB132F1-11B6-4B70-8819-4ADD7B6C814E", "versionEndIncluding": "14.4.0", "versionStartIncluding": "14.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}

3.7 /10

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0 /10

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

JSON object

Attach tags to CVE-2020-11080

3.7^/10

5.0^/10

Attach tags to `CVE-2020-11080`