NetSight
high7.5

CVE-2019-18676

An issue was discovered in Squid 3.x and 4.x through 4.8.

Impact

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.

Affected products

VendorProductAffected versions
Squid-CacheSquid
from 3.0 through 3.5.28
from 4.0 through 4.8
CanonicalUbuntu Linux
Versions 16.04, 18.04, 19.04, 19.10
FedoraprojectFedora
Versions 30, 31
DebianDebian Linux
Versions 9.0, 10.0

Weakness classification

References