CVE-2025-5054 is a race condition vulnerability in Canonical's Apport version 2.32.0 and earlier. This vulnerability allows local attackers to leak sensitive information via PID-reuse by leveraging namespaces. With the increasing reliance on containerization in modern computing environments, the potential for exploitation poses significant risks.
The CVSS score for this vulnerability is 4.7, indicating a medium severity level. This score is significant as it highlights the need for organizations to understand the risks associated with vulnerabilities that allow unauthorized access to sensitive information. Organizations running affected versions of Ubuntu should prioritize patching this vulnerability.
The urgency for defenders is emphasized as attackers may leverage this vulnerability to compromise sensitive data. Organizations should assess their exposure and take necessary actions to protect their systems.
Given that this vulnerability has known exploit availability, organizations must act promptly to mitigate its impact, ensuring their systems are secured against potential attacks.
Vulnerability Details
This vulnerability allows local attackers to exploit a race condition in Canonical's Apport, specifically affecting versions up to and including 2.32.0. The issue arises when handling a crash, where the function `_check_global_pid_and_forward` is called before `consistency_checks`. This sequence allows attackers to forward core dumps to containerized processes, potentially leaking sensitive information.
According to the CVSS metrics, it has a base score of 4.7, indicating a medium severity. This score is derived from factors such as local attack vector, high attack complexity, low privileges required, and high confidentiality impact.
The affected products include Apport and various versions of Ubuntu Linux, ranging from 16.04 LTS to 25.04. This widespread impact emphasizes the importance of addressing this vulnerability proactively.
Technical Analysis
The root cause of CVE-2025-5054 lies in the race condition that occurs during the crash handling process. Specifically, the Apport function `_check_global_pid_and_forward` is invoked before `consistency_checks`, which should verify if the crashing process has been replaced. This flaw can allow the core dump to be forwarded to a malicious container that quickly replaces the original crashing process.
The attack vector is local, meaning that an attacker must have access to the system to exploit this vulnerability. The attack complexity is high, requiring specific conditions to be met for successful exploitation.
The required privileges for exploitation are low, which means that even non-privileged users can potentially exploit this vulnerability. There is no user interaction required for this vulnerability to be exploited.
The confidentiality impact is high, as sensitive information can be leaked through the core dump, while there is no integrity or availability impact associated with this vulnerability.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-5054 is significant. Organizations utilizing affected versions of Ubuntu may find themselves exposed to data leaks, especially in environments where sensitive information is processed or stored.
This vulnerability highlights the importance of securing crash handling processes and ensuring timely updates to software components. Organizations must understand that the potential blast radius includes any sensitive information that could be compromised due to this flaw.
Given the CVSS score of 4.7 and the medium exploitability score, organizations should address this vulnerability in their priority patch cycle to limit the impact on their systems and data.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects the Apport component in Ubuntu Linux versions 16.04 through 25.04. Organizations using these versions should be aware of their exposure and take steps to remediate the issue.
Mitigation & Remediation
Organizations should prioritize patching immediately. Canonical has released updates to address this vulnerability. It is advisable to upgrade to the latest version of Apport to mitigate the risk.
In the absence of an immediate patch, organizations can implement workarounds by isolating sensitive applications or using container security measures to reduce the attack surface.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual processes that leverage PID-reuse patterns, as well as analyze core dumps for sensitive data being forwarded to unintended containers.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-5054 lies in its demonstration of the challenges associated with managing containerized environments. This vulnerability underscores the need for enhanced security measures during crash handling processes.
Security teams should note the patterns of vulnerabilities that arise from race conditions and ensure that robust testing is in place for software updates. Regular audits of crash handling mechanisms should also be implemented.
For further information, organizations can refer to the following resources: penetration testing methodology and vulnerability management programs to enhance their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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