Amazon Linux 2 Security Advisory: ALAS-2021-1672
Advisory Release Date: 2021-06-24 02:45 Pacific
Advisory Updated Date: 2021-06-24 17:47 Pacific
Severity:
Important
Issue Overview:
A null pointer de-reference was found in the way httpd handled specially crafted HTTP/2 request. A remote attacker could use this flaw to crash the httpd child process, causing temporary denial of service. (CVE-2021-31618)
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-2.4.46-2.amzn2.aarch64
httpd-devel-2.4.46-2.amzn2.aarch64
httpd-tools-2.4.46-2.amzn2.aarch64
mod_ssl-2.4.46-2.amzn2.aarch64
mod_md-2.4.46-2.amzn2.aarch64
mod_proxy_html-2.4.46-2.amzn2.aarch64
mod_ldap-2.4.46-2.amzn2.aarch64
mod_session-2.4.46-2.amzn2.aarch64
httpd-debuginfo-2.4.46-2.amzn2.aarch64
i686:
httpd-2.4.46-2.amzn2.i686
httpd-devel-2.4.46-2.amzn2.i686
httpd-tools-2.4.46-2.amzn2.i686
mod_ssl-2.4.46-2.amzn2.i686
mod_md-2.4.46-2.amzn2.i686
mod_proxy_html-2.4.46-2.amzn2.i686
mod_ldap-2.4.46-2.amzn2.i686
mod_session-2.4.46-2.amzn2.i686
httpd-debuginfo-2.4.46-2.amzn2.i686
noarch:
httpd-manual-2.4.46-2.amzn2.noarch
httpd-filesystem-2.4.46-2.amzn2.noarch
src:
httpd-2.4.46-2.amzn2.src
x86_64:
httpd-2.4.46-2.amzn2.x86_64
httpd-devel-2.4.46-2.amzn2.x86_64
httpd-tools-2.4.46-2.amzn2.x86_64
mod_ssl-2.4.46-2.amzn2.x86_64
mod_md-2.4.46-2.amzn2.x86_64
mod_proxy_html-2.4.46-2.amzn2.x86_64
mod_ldap-2.4.46-2.amzn2.x86_64
mod_session-2.4.46-2.amzn2.x86_64
httpd-debuginfo-2.4.46-2.amzn2.x86_64