A security update has been released for AlmaLinux 9 to address a moderate-level vulnerability. The issue affects systemd, a system and service manager for Linux, allowing a local attacker to crash an SUID program and gain read access to its core dump. This is due to a race condition in systemd-coredump, identified by CVE-2025-4598.

ALSA-2025:22660: systemd security update (Moderate)

ALSA-2025:22660: systemd security update (Moderate)

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AlmaLinux: 9
Type: Security
Severity: Moderate
Release date: 2025-12-04

Summary:

The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.

Security Fix(es):

* systemd-coredump: race condition that allows a local attacker to crash a SUID program and gain read access to the resulting core dump (CVE-2025-4598)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Full details, updated packages, references, and other related information: https://errata.almalinux.org/9/ALSA-2025-22660.html

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Kind regards,
AlmaLinux Team