CVE-2019-3842

The CVE-2019-3842 issue affects systemd’s pam_systemd, where improper sanitization of the XDG_SEAT environment variable could enable commands to be checked against polkit policies using the "allow_active" element instead of "allow_any" in some configurations. This is a local vulnerability (enviro...

CVE-2018-16865

CVE-2018-16865 affects systemd-journald (journald) and was described across multiple sources as a memory-allocation/stack-clash vulnerability. The issue occurs when many entries are sent to the journal socket (or via remote journald-remote) and can allow crash or code execution. Affected versions...

CVE-2018-16864

CVE-2018-16864 affects systemd-journald. The connected advisories confirm a memory-management issue in journald (and a backport memory leak in journald-server.c) that can crash journald or enable privilege escalation on local hosts. Root cause: memory allocations for command-line/state data not p...

CVE-2023-26604

CVE-2023-26604 affects systemd before 247. The root cause is that systemd does not set LESSSECURE=1, allowing less to spawn as root and enabling local privilege escalation when systemctl is used from sudo. Existence of substantiated impact: local privilege escalation with high severity. Remediati...

CVE-2018-15686

CVE-2018-15686 affects systemd up to version 239, where unit_deserialize can be manipulated via NotifyAccess to inject arbitrary state across re-execution, potentially enabling root privilege escalation. Exploitation has been demonstrated (e.g., exploit-db link in references). Remediation is to u...

CVE-2020-1712

CVE-2020-1712 affects systemd; a heap use-after-free occurs when asynchronous Polkit queries are performed while handling dbus messages. Local unprivileged attackers can crash systemd services or potentially execute code to elevate privileges by sending crafted dbus messages. Public details acros...

CVE-2018-6954

CVE-2018-6954 affects systemd-tmpfiles in systemd up to version 237. The flaw arises from mishandling of symlinks present in non-terminal path components, enabling a local user to obtain ownership of arbitrary files by creating a directory and a file within it, then replacing the directory with a...

CVE-2017-15908

CVE-2017-15908 affects systemd 223–235 where a remote DNS server can reply with a crafted DNS NSEC RR to trigger an infinite loop in dns_packet_read_type_window() of systemd-resolved, causing DoS. Public advisories (Ubuntu USN-3558-1) reference CVE-2017-15908; related OpenVAS/Nessus entries docum...

CVE-2017-18078

The CVE-2017-18078 issue affects systemd-tmpfiles in systemd prior to 237. The root cause is that tmpfiles may attempt ownership/permission changes on hardlinked files even when fs.protected_hardlinks is off, enabling a local attacker to bypass access restrictions by using a hard link to a file t...

CVE-2019-3844

Summary (CVE-2019-3844): Affected component is systemd with DynamicUser; a local attacker can create SUID/SGID binaries and gain access to resources owned by a potentially different service after the transient UID/GID is recycled. This is a local privilege escalation vulnerability. Remediation fo...

CVE-2019-3843

CVE-2019-3843 concerns systemd's DynamicUser feature, where a service can create a SUID/SGID binary and retain it under a transient UID/GID after termination. The result is a local attacker potentially accessing resources owned by a different service in the future when UID/GID are recycled, as de...

CVE-2017-9445

The CVE-2017-9445 issue affects systemd up to version 233, where dns_packet_new in systemd-resolved may allocate a buffer that is too small when processing DNS responses. A malicious DNS server can craft a TCP payload to trigger an out-of-bounds write, potentially enabling remote code execution o...

CVE-2018-15687

CVE-2018-15687 : A race condition in systemd's chown_one() was identified as a local privilege-escalation flaw, potentially allowing a local attacker to set arbitrary permissions on files. Affected products include systemd up to version 239. The issue is fixed in patched releases; multiple adviso...

CVE-2016-10156

The CVE-2016-10156 issue affects systemd v228, where a flaw in /src/basic/fs-util.c caused world-writable SUID files to be created via systemd timers. This could allow a local attacker to escalate privileges to root. The vulnerability is fixed in systemd v229, and multiple advisories (SUSE/SLES o...

CVE-2017-9217

CVE-2017-9217 affects systemd-resolved up to version 233; a crafted DNS response with an empty question section can trigger a remote denial of service (daemon crash). The vulnerability is documented in multiple advisories (e.g., SUSE-SU-2017:2031-1) and is fixed by applying the systemd security u...

CVE-2013-4391

CVE-2013-4391 : Integer overflow in systemd’s journald-native.c (valid_user_field) allows remote attackers to crash the service and possibly execute code via a very large journal data field, triggering a heap-based buffer overflow. Documented impact includes denial of service and potential arbitr...

CVE-2026-40224

CVE-2026-40224 concerns a local privilege escalation in systemd-machined: in systemd 259 before 260, varlink can be used to reach the root namespace, enabling elevation of privileges. The vulnerability affects the systemd component and is tied to root namespace handling via varlink. The provided ...