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Unbound DNS Resolver 1.6.4 - 1.9.4 RCE Vulnerability

Information

Severity

Severity

Medium

Family

Family

General

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

Unbound DNS Resolver is prone to a remote code execution vulnerability under certain conditions.

Insight

Insight

Unbound contains a vulnerability that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with '--enable-ipsecmod' support, and ipsecmod is enabled and used in the configuration.

Affected Software

Affected Software

Ubound DNS Resolver versions 1.6.4 - 1.9.4.

Detection Method

Detection Method

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

Solution

Solution

Update to version 1.9.5 or later or apply the provided patch.

Common Vulnerabilities and Exposures (CVE)