Medium: squid

Issue Overview:

The Squid Software Foundation Squid HTTP Caching Proxy contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request.(CVE-2018-1000027)

The Squid Software Foundation Squid HTTP Caching Proxy contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy… This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.(CVE-2018-1000024)

Affected Packages:

squid

Issue Correction:
Run yum update squid to update your system.

New Packages:

i686:  
    squid-3.5.20-11.35.amzn1.i686  
    squid-migration-script-3.5.20-11.35.amzn1.i686  
    squid-debuginfo-3.5.20-11.35.amzn1.i686  
  
src:  
    squid-3.5.20-11.35.amzn1.src  
  
x86_64:  
    squid-debuginfo-3.5.20-11.35.amzn1.x86_64  
    squid-3.5.20-11.35.amzn1.x86_64  
    squid-migration-script-3.5.20-11.35.amzn1.x86_64  

Additional References

Red Hat: CVE-2018-1000024, CVE-2018-1000027

Mitre: CVE-2018-1000024, CVE-2018-1000027