CVE-2020-11080

CVE Details

Release Date:2020-06-03

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.

See more information about CVE-2020-11080 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7.5 Base Metrics: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (istio)ELSA-2020-57652020-07-22
Oracle Linux version 7 (kata)ELSA-2020-57652020-07-22
Oracle Linux version 7 (kata-image)ELSA-2020-57652020-07-22
Oracle Linux version 7 (kata-runtime)ELSA-2020-57652020-07-22
Oracle Linux version 7 (kernel-uek-container)ELSA-2020-57652020-07-22
Oracle Linux version 7 (kubernetes)ELSA-2020-57652020-07-22
Oracle Linux version 7 (olcne)ELSA-2020-57652020-07-22
Oracle Linux version 8 (nghttp2)ELSA-2020-27552020-07-06
Oracle Linux version 8 (nodejs)ELSA-2020-28482020-07-14
Oracle Linux version 8 (nodejs)ELSA-2020-28522020-07-14
Oracle Linux version 8 (nodejs-nodemon)ELSA-2020-28482020-07-14
Oracle Linux version 8 (nodejs-nodemon)ELSA-2020-28522020-07-14
Oracle Linux version 8 (nodejs-packaging)ELSA-2020-28482020-07-14
Oracle Linux version 8 (nodejs-packaging)ELSA-2020-28522020-07-14



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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