Medium: httpd

Issue Overview:

By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.33). (CVE-2018-8011)

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:

noarch:  
    httpd-manual-2.4.34-1.amzn2.1.0.noarch  
    httpd-filesystem-2.4.34-1.amzn2.1.0.noarch  
  
src:  
    httpd-2.4.34-1.amzn2.1.0.src  
  
x86_64:  
    httpd-2.4.34-1.amzn2.1.0.x86_64  
    httpd-devel-2.4.34-1.amzn2.1.0.x86_64  
    httpd-tools-2.4.34-1.amzn2.1.0.x86_64  
    mod_ssl-2.4.34-1.amzn2.1.0.x86_64  
    mod_md-2.4.34-1.amzn2.1.0.x86_64  
    mod_proxy_html-2.4.34-1.amzn2.1.0.x86_64  
    mod_ldap-2.4.34-1.amzn2.1.0.x86_64  
    mod_session-2.4.34-1.amzn2.1.0.x86_64  
    httpd-debuginfo-2.4.34-1.amzn2.1.0.x86_64  

Additional References

Red Hat: CVE-2018-8011

Mitre: CVE-2018-8011