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7.5High

CVE-2018-16865

The systemd Project systemd Published: (7 years ago)

Description

An allocation of memory without limits, that could result in the stack clashing with another memory region, was discovered in systemd-journald when many entries are sent to the journal socket. A local attacker, or a remote one if systemd-journal-remote is used, may use this flaw to crash systemd-journald or execute code with journald privileges. Versions through v240 are vulnerable.

Weakness (CWE): CWE-770

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
The systemd Project systemd through v240

References and patches

Recent CVEs in the same product — systemd

2.9Low
CVE-2026-40228
systemd systemd

In systemd 259, systemd-journald can send ANSI escape sequences to the terminals of arbitrary users when a "logger -p emerg" command is executed, if ForwardToWall=yes is set.

6.2Medium
CVE-2026-40227
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In systemd 260 before 261, a local unprivileged user can trigger an assert via an IPC API call with an array or map that has a null element.

6.4Medium
CVE-2026-40226
systemd systemd

In nspawn in systemd 233 through 259 before 260, an escape-to-host action can occur via a crafted optional config file.

6.4Medium
CVE-2026-40225
systemd systemd

In udev in systemd before 260, local root execution can occur via malicious hardware devices and unsanitized kernel output.

6.7Medium
CVE-2026-40224
systemd systemd

In systemd 259 before 260, there is local privilege escalation in systemd-machined because varlink can be used to reach the root namespace.

4.7Medium
CVE-2026-40223
systemd systemd

In systemd 258 before 260, a local unprivileged user can trigger an assert when a Delegate=yes and User=<unset> unit exists and is running.