Threat Encyclopedia

Squid.Proxy.HTTP.Range.Header.Handling.DoS

description-logoDescription

This indicates an attack attempt to exploit a Denial of Service Vulnerability in Squid Project Squid.
The vulnerabilities are due to invalid processing of HTTP Range requests. A remote attacker could exploit these vulnerabilities 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 logoImpact

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-pxwq-f3qr-w2xf

CVE References

CVE-2021-31806

Telemetry logoTelemetry