Threat Encyclopedia

Squid.Proxy.HTTP.Vary.Header.Handling.DoS

description-logoDescription

This indicates an attack attempt to exploit a Denial of Service Vulnerability in Squid Proxy.
The vulnerability is due to invalid processing of HTTP responses. A remote attacker could exploit this vulnerability by sending a crafted request to the target server. Successful exploitation could result in a denial-of-service condition.

affected-products-logoAffected Products

Squid Project Squid 4.x prior to 4.15
Squid Project Squid 5.x prior to 5.0.6

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

recomended-action-logoRecommended Actions

Apply the most recent upgrade or patch from the vendor.
https://github.com/squid-cache/squid/security/advisories/GHSA-jjq6-mh2h-g39h

CVE References

CVE-2021-28662