
CVE-2023-26604 – systemd: privilege escalation via the less pager
https://notcve.org/view.php?id=CVE-2023-26604
03 Mar 2023 — systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output. A vulnerability was found i... • https://packetstorm.news/files/id/174130 • CWE-269: Improper Privilege Management •

CVE-2022-4415 – systemd: local information leak due to systemd-coredump not respecting fs.suid_dumpable kernel setting
https://notcve.org/view.php?id=CVE-2022-4415
11 Jan 2023 — A vulnerability was found in systemd. This security flaw can cause a local information leak due to systemd-coredump not respecting the fs.suid_dumpable kernel setting. Multicluster Engine for Kubernetes 2.1.6 images Multicluster engine for Kubernetes provides the foundational components that are necessary for the centralized management of multiple Kubernetes-based clusters across data centers, public clouds, and private clouds. You can use the engine to create new Red Hat OpenShift Container Platform cluste... • https://github.com/systemd/systemd/commit/b7641425659243c09473cd8fb3aef2c0d4a3eb9c • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2022-45873 – systemd: deadlock in systemd-coredump via a crash with a long backtrace
https://notcve.org/view.php?id=CVE-2022-45873
23 Nov 2022 — systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file. systemd 250 y 251 permiten a los us... • https://github.com/systemd/systemd/commit/076b807be472630692c5348c60d0c2b7b28ad437 • CWE-400: Uncontrolled Resource Consumption CWE-833: Deadlock •

CVE-2022-3821 – systemd: buffer overrun in format_timespan() function
https://notcve.org/view.php?id=CVE-2022-3821
08 Nov 2022 — An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service. Se descubrió un problema de error de uno en uno en Systemd en la función format_timespan() de time-util.c. Un atacante podría proporcionar valores específicos de tiempo y precisión que provoquen una saturación del búfer en format_timespan(), lo que provocará una Deneg... • https://bugzilla.redhat.com/show_bug.cgi?id=2139327 • CWE-193: Off-by-one Error •

CVE-2021-3997 – Gentoo Linux Security Advisory 202305-15
https://notcve.org/view.php?id=CVE-2021-3997
13 Jan 2022 — A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp. Se ha encontrado un fallo en systemd. Una recursión no controlada en systemd-tmpfiles puede conllevar a una denegación de servicio en el momento del arranque cuando son creados demasiados directorios anidados en /tmp. It was discovered that systemd-tmpfiles employed uncontrolled recursion when removing deeply nested directory hierarchie... • https://access.redhat.com/security/cve/CVE-2021-3997 • CWE-674: Uncontrolled Recursion •

CVE-2021-33910 – systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash
https://notcve.org/view.php?id=CVE-2021-33910
20 Jul 2021 — basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash. basic/unit-name.c en systemd anterior a las versiones 246.15, 247.8, 248.5 y 249.1 tiene una asignación de memoria con un valor de tamaño excesivo (que involucra a strdupa y alloca para un nombre de ruta controlado por un atacante local) que resulta en una caída del si... • https://packetstorm.news/files/id/163621 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •