CVE-2019-18677

Medium

Description

An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.

SeverityMedium
CVSS6.1
Exploit probability—
ProductSquid
PublishedNov 26, 2019
First seenNov 26, 2019

How to fix

Affected products

ProductAffected versionsFixed in
squid-cache squid2.0 ≤ v ≤ 2.7, 3.0 ≤ v ≤ 3.5.28, 4.0 ≤ v ≤ 4.8, 2.7—
canonical ubuntu_linux16.04, 18.04, 19.04, 19.10—
fedoraproject fedora30, 31—

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