Moderate Security Vulnerability in systemd Packages: Race Condition in systemd-coredump
Summary
ALSA-2025:22660: Moderate: systemd security update. Affects rhel-net-naming-sysattrs versions < 252-55.el9_7.7.alma.1. Fixed in 252-55.el9_7.7.alma.1. How to fix ↓
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Background
The systemd package is a critical system and service manager for Linux, designed to replace traditional init systems like SysV and LSB. It enhances system performance through aggressive parallelism, socket and D-Bus activation, and on-demand service management. systemd also manages system states, mount points, and service dependencies, making it a cornerstone of modern Linux distributions. However, a recently identified vulnerability poses a risk to its integrity and security.
Vulnerability Detail
The vulnerability, identified as CVE-2025-4598, arises from a race condition in the systemd-coredump component. This flaw allows a local attacker to exploit the race condition to crash a SUID (Set User ID) program, potentially gaining unauthorized read access to the resulting core dump. This could lead to the exposure of sensitive information and compromise system security, making it imperative for users to address this issue promptly.
How To Fix
Minimum fixed version
252-55.el9_7.7.alma.1
This is the first release that contains the fix.
sudo dnf update rhel-net-naming-sysattrsTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can restrict access to SUID programs or disable core dumps until the systemd package is updated. This can be done by modifying the system's core dump settings in '/etc/security/limits.conf' or using the command 'ulimit -c 0' to disable core dumps for the current session.
Conclusion
The identified vulnerability in the systemd packages, specifically CVE-2025-4598, poses a significant risk due to a race condition in systemd-coredump. It is crucial for users to update their packages to the patched version to safeguard their systems against potential exploitation. Utilizing tools like Vulert can further enhance security by providing real-time monitoring for vulnerabilities.
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FAQ
CVE-2025-4598 is a security vulnerability in the systemd-coredump component that allows local attackers to exploit a race condition, potentially gaining access to sensitive core dump files.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability.
Failing to address this vulnerability could lead to unauthorized access to sensitive information stored in core dumps, potentially compromising system security and user data.
Yes, you can temporarily restrict access to SUID programs or disable core dumps by modifying system settings to mitigate the risk until the package is updated.
Vulert is a monitoring tool that uses a manifest file like package-lock.json to track and alert for open-source vulnerabilities in your software, ensuring you stay informed about potential risks.
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