CVE-2018-11763

Priority
Description
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large
SETTINGS frames a client can occupy a connection, server thread and CPU
time without any connection timeout coming to effect. This affects only
HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
Notes
 mdeslaur> artful and older don't enable http2 in the build.
 mdeslaur> see CVE-2018-1302 for a whole http2 backport requirement
Assigned-to
mdeslaur
Package
Upstream:released (2.4.35)
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (code not present)
Ubuntu 14.04 LTS (Trusty Tahr):not-affected (code not present)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (code not built)
Ubuntu 18.04 LTS (Bionic Beaver):released (2.4.29-1ubuntu4.4)
Ubuntu 18.10 (Cosmic Cuttlefish):released (2.4.34-1ubuntu2)
Patches:
Upstream:https://svn.apache.org/viewvc?view=revision&revision=1840757 (2.4.x)
Upstream:https://github.com/apache/httpd/commit/484aba5048e3457dc1d15189f1910d007b1a4a76
More Information

Updated: 2019-01-14 22:31:18 UTC (commit 51f9b73af244ba86b9321e46e526586c25a8e060)