Amazon Linux 2 Security Advisory: ALAS-2019-1155
Advisory Release Date: 2019-01-23 23:31 Pacific
Advisory Updated Date: 2019-01-25 01:05 Pacific
Severity:
Medium
Issue Overview:
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.(CVE-2018-11763)
Affected Packages:
httpd
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update httpd to update your system.
New Packages:
aarch64:
httpd-2.4.37-1.amzn2.0.1.aarch64
httpd-devel-2.4.37-1.amzn2.0.1.aarch64
httpd-tools-2.4.37-1.amzn2.0.1.aarch64
mod_ssl-2.4.37-1.amzn2.0.1.aarch64
mod_md-2.4.37-1.amzn2.0.1.aarch64
mod_proxy_html-2.4.37-1.amzn2.0.1.aarch64
mod_ldap-2.4.37-1.amzn2.0.1.aarch64
mod_session-2.4.37-1.amzn2.0.1.aarch64
httpd-debuginfo-2.4.37-1.amzn2.0.1.aarch64
i686:
httpd-2.4.37-1.amzn2.0.1.i686
httpd-devel-2.4.37-1.amzn2.0.1.i686
httpd-tools-2.4.37-1.amzn2.0.1.i686
mod_ssl-2.4.37-1.amzn2.0.1.i686
mod_md-2.4.37-1.amzn2.0.1.i686
mod_proxy_html-2.4.37-1.amzn2.0.1.i686
mod_ldap-2.4.37-1.amzn2.0.1.i686
mod_session-2.4.37-1.amzn2.0.1.i686
httpd-debuginfo-2.4.37-1.amzn2.0.1.i686
noarch:
httpd-manual-2.4.37-1.amzn2.0.1.noarch
httpd-filesystem-2.4.37-1.amzn2.0.1.noarch
src:
httpd-2.4.37-1.amzn2.0.1.src
x86_64:
httpd-2.4.37-1.amzn2.0.1.x86_64
httpd-devel-2.4.37-1.amzn2.0.1.x86_64
httpd-tools-2.4.37-1.amzn2.0.1.x86_64
mod_ssl-2.4.37-1.amzn2.0.1.x86_64
mod_md-2.4.37-1.amzn2.0.1.x86_64
mod_proxy_html-2.4.37-1.amzn2.0.1.x86_64
mod_ldap-2.4.37-1.amzn2.0.1.x86_64
mod_session-2.4.37-1.amzn2.0.1.x86_64
httpd-debuginfo-2.4.37-1.amzn2.0.1.x86_64