CVE-2025-27512

Description

A flaw was found in Zincati, an auto-update agent for Fedora CoreOS hosts. This vulnerability may allow an unprivileged user with access to the system D-Bus socket to deploy older Fedora CoreOS versions, which may have other known vulnerabilities, and reboot the system into the deployed update via a logic error in the polkit rule.

Statement

Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Understanding the Weakness (CWE)

Access Control,Confidentiality

Technical Impact: Gain Privileges or Assume Identity; Read Application Data; Read Files or Directories

An attacker may be able to access resources with the elevated privilege that could not be accessed with the attacker's original privileges. This is particularly likely in conjunction with another flaw, such as a buffer overflow.

Frequently Asked Questions

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