Vulnerability · Published Dec 18, 2022 · Assigned by VulDB

CVE-2021-4248kapetan dns Request.cs entropy

Medium 5.6

In plain English

A medium-severity weak randomness in dns from kapetan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.6Medium
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 is able to 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
NuGetdns7.0.0GHSA-g3wc-xv93-445q

Affected products (as reported)

VendorProductVersions
kapetan dns 6.06.1

Weakness: CWE-330 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References