Oracle Linux: CVE-2019-9513: ELSA-2019-2692: nghttp2 security update (IMPORTANT) (Multiple Advisories)
Description
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU. A flaw was found in HTTP/2. An attacker, using PRIORITY frames to flood the system, could cause excessive CPU usage and starvation of other clients. The largest threat from this vulnerability is to system availability.
Solution(s)
- oracle-linux-upgrade-nginx
- oracle-linux-upgrade-nginx-all-modules
- oracle-linux-upgrade-nginx-filesystem
- oracle-linux-upgrade-nginx-mod-http-image-filter
- oracle-linux-upgrade-nginx-mod-http-perl
- oracle-linux-upgrade-nginx-mod-http-xslt-filter
- oracle-linux-upgrade-nginx-mod-mail
- oracle-linux-upgrade-nginx-mod-stream
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