Related Vulnerabilities: CVE-2019-12519  

A stack-based out-of-bounds write has been found in Squid before 4.11 or 5.0.2., where a crafted ESI response sent from an upstream server can overwrite arbitrary attacker controlled information onto the process stack.

Severity High

Remote Yes

Type Arbitrary code execution

Description

A stack-based out-of-bounds write has been found in Squid before 4.11 or 5.0.2., where a crafted ESI response sent from an upstream server can overwrite arbitrary attacker controlled information onto the process stack.

AVG-1146 squid 4.10-1 Critical Vulnerable

http://www.squid-cache.org/Advisories/SQUID-2019_12.txt
http://www.squid-cache.org/Versions/v4/changesets/squid-4-fdd4123629320aa1ee4c3481bb392437c90d188d.patch