Important: squid

Issue Overview:

A flaw was found in squid. Due to improper validation while parsing the request URI, squid is vulnerable to HTTP request smuggling. This issue could allow a trusted client to perform an HTTP request smuggling attack and access services otherwise forbidden by squid. The highest threat from this vulnerability is to data confidentiality. (CVE-2020-25097)

Affected Packages:

squid

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 squid to update your system.

New Packages:

aarch64:  
    squid-3.5.20-17.amzn2.6.1.aarch64  
    squid-sysvinit-3.5.20-17.amzn2.6.1.aarch64  
    squid-migration-script-3.5.20-17.amzn2.6.1.aarch64  
    squid-debuginfo-3.5.20-17.amzn2.6.1.aarch64  
  
i686:  
    squid-3.5.20-17.amzn2.6.1.i686  
    squid-sysvinit-3.5.20-17.amzn2.6.1.i686  
    squid-migration-script-3.5.20-17.amzn2.6.1.i686  
    squid-debuginfo-3.5.20-17.amzn2.6.1.i686  
  
src:  
    squid-3.5.20-17.amzn2.6.1.src  
  
x86_64:  
    squid-3.5.20-17.amzn2.6.1.x86_64  
    squid-sysvinit-3.5.20-17.amzn2.6.1.x86_64  
    squid-migration-script-3.5.20-17.amzn2.6.1.x86_64  
    squid-debuginfo-3.5.20-17.amzn2.6.1.x86_64  

Additional References

Red Hat: CVE-2020-25097

Mitre: CVE-2020-25097