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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

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

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.

Common Vulnerabilities and Exposures (CVE)