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Dovecot < 2.3.5.2 Denial of Service Vulnerability

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

Dovecot is prone to a Denial of Service (DoS) vulnerability.

Insight

Insight

The JSON encoder allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.

Affected Software

Affected Software

Dovecot version 2.3.0 through 2.3.5.1.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 2.3.5.2.

Common Vulnerabilities and Exposures (CVE)