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Squid 1.0 < 4.14, 5.0 < 5.0.5 DoS Vulnerability (SQUID-2021:3)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Squid is prone to a denial of service (DoS) vulnerability in the Cache Manager.
Insight
Insight
Due to an incorrect parser validation bug Squid is vulnerable to a DoS attack against the Cache Manager API. This problem allows a trusted client to trigger memory leaks which over time lead to a DoS against Squid and the machine it is operating on. This attack is limited to clients with Cache Manager API access privilege.
Affected Software
Affected Software
Squid version 1.0 through 4.14 and 5.0 through 5.0.5.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 4.15, 5.0.6 or later. See the referenced vendor advisory for a workaround.