Red Hat: CVE-2020-11080: CVE-2020-11080 nghttp2: overly large SETTINGS frames can lead to DoS (Multiple Advisories)
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.
Solution(s)
- redhat-upgrade-libnghttp2
- redhat-upgrade-libnghttp2-debuginfo
- redhat-upgrade-libnghttp2-devel
- redhat-upgrade-nghttp2
- redhat-upgrade-nghttp2-debuginfo
- redhat-upgrade-nghttp2-debugsource
- redhat-upgrade-nodejs
- redhat-upgrade-nodejs-debuginfo
- redhat-upgrade-nodejs-debugsource
- redhat-upgrade-nodejs-devel
- redhat-upgrade-nodejs-docs
- redhat-upgrade-nodejs-full-i18n
- redhat-upgrade-nodejs-nodemon
- redhat-upgrade-nodejs-packaging
- redhat-upgrade-npm
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