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PowerDNS Recursor Label Decompression Denial of Service Vulnerability (Linux)

Information

Severity

Severity

High

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

5 years ago

Summary

This host is running PowerDNS Recursor and is prone to denial of service vulnerability.

Insight

Insight

The flaw exists due to an error in the handling of DNS packets by label decompression functionality.

Affected Software

Affected Software

PowerDNS Recursor 3.5.x, 3.6.x before 3.6.4, and 3.7.x before 3.7.3 on Linux

Detection Method

Detection Method

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

Solution

Solution

Upgrade to PowerDNS Recursor 3.6.4, or 3.7.3. or later.

Common Vulnerabilities and Exposures (CVE)