Important: keepalived

Issue Overview:

Heap-based buffer overflow vulnerability in extract_status_code() function in lib/html.c that parses HTTP status code returned from web server allows malicious web server or man-in-the-middle attacker pretending to be a web server to cause either a denial of service or potentially execute arbitrary code on keepalived load balancer.(CVE-2018-19115)

Affected Packages:

keepalived

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 keepalived to update your system.

New Packages:

aarch64:  
    keepalived-1.3.5-8.amzn2.aarch64  
    keepalived-debuginfo-1.3.5-8.amzn2.aarch64  
  
i686:  
    keepalived-1.3.5-8.amzn2.i686  
    keepalived-debuginfo-1.3.5-8.amzn2.i686  
  
src:  
    keepalived-1.3.5-8.amzn2.src  
  
x86_64:  
    keepalived-1.3.5-8.amzn2.x86_64  
    keepalived-debuginfo-1.3.5-8.amzn2.x86_64  

Additional References

Red Hat: CVE-2018-19115

Mitre: CVE-2018-19115