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DNS NuGet package uses insufficiently random values

Critical severity GitHub Reviewed Published Dec 18, 2022 to the GitHub Advisory Database • Updated Jan 31, 2023

Package

nuget DNS (NuGet)

Affected versions

< 7.0.0

Patched versions

7.0.0

Description

A vulnerability was found in kapetan dns up to 6.1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file DNS/Protocol/Request.cs. The manipulation leads to insufficient entropy in prng. The attack may be launched remotely. Upgrading to version 7.0.0 can address this issue. The name of the patch is cf7105aa2aae90d6656088fe5a8ee1d5730773b6. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216188.

References

Published by the National Vulnerability Database Dec 18, 2022
Published to the GitHub Advisory Database Dec 18, 2022
Reviewed Dec 22, 2022
Last updated Jan 31, 2023

Severity

Critical
9.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2021-4248

GHSA ID

GHSA-g3wc-xv93-445q

Source code

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