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Squid 2.5.STABLE2 < 4.15, 5.0.1 < 5.0.6 Multiple DoS Vulnerabilities (SQUID-2021:4)
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 multiple denial of service (DoS) vulnerabilities.
Insight
Insight
The following vulnerabilities exist: - CVE-2021-31806: Due to an incorrect input validation bug Squid is vulnerable to a DoS attack against all clients using the proxy. - CVE-2021-31807: Due to an incorrect memory management bug Squid is vulnerable to a DoS attack against all clients using the proxy. - CVE-2021-31808: Due to an integer overflow bug Squid is vulnerable to a DoS attack against all clients using the proxy.
Affected Software
Affected Software
Squid version 2.5.STABLE2 through 2.7.STABLE9, 3.0 through 4.14 and 5.0.1 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.