Improper Handling of Insufficient Permissions or Privileges Affecting yggdrasil package, versions <0:0.4.5-3.el10_0


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-CENTOS10-YGGDRASIL-10299329
  • published4 Jun 2025
  • disclosed14 May 2025

Introduced: 14 May 2025

NewCVE-2025-3931  (opens in a new tab)
CWE-280  (opens in a new tab)

How to fix?

Upgrade Centos:10 yggdrasil to version 0:0.4.5-3.el10_0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream yggdrasil package and not the yggdrasil package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

A flaw was found in Yggdrasil, which acts as a system broker, allowing the processes to communicate to other children's "worker" processes through the DBus component. Yggdrasil creates a DBus method to dispatch messages to workers. However, it misses authentication and authorization checks, allowing every system user to call it. One available Yggdrasil worker acts as a package manager with capabilities to create and enable new repositories and install or remove packages.

This flaw allows an attacker with access to the system to leverage the lack of authentication on the dispatch message to force the Yggdrasil worker to install arbitrary RPM packages. This issue results in local privilege escalation, enabling the attacker to access and modify sensitive system data.

CVSS Base Scores

version 3.1