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7.0Hoch

CVE-2018-15686systemd: reexec state injection: fgets() on overlong lines leads to line splitting

systemd systemd Veröffentlicht: (vor 8 Jahren)

Beschreibung

A vulnerability in unit_deserialize of systemd allows an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This can be used to improperly influence systemd execution and possibly lead to root privilege escalation. Affected releases are systemd versions up to and including 239.

Schwachstellentyp (CWE): CWE-502

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
systemd systemd unspecified – ≤ 239

Referenzen und Patches

Neue CVEs im selben Produkt — systemd

2.9Niedrig
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.

6.2Mittel
CVE-2026-40227
systemd systemd

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.

6.4Mittel
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.

6.4Mittel
CVE-2026-40225
systemd systemd

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

6.7Mittel
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.

4.7Mittel
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.