CVSS: 7.8EPSS: 4%CPEs: 1EXPL: 3CVE-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 •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 1CVE-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 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 1CVE-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. An update that solves four vulnerabilities and has two fixes is now available. • https://access.redhat.com/security/cve/CVE-2021-3997 • CWE-674: Uncontrolled Recursion •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 3CVE-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 •
CVSS: 6.1EPSS: 0%CPEs: 4EXPL: 1CVE-2020-13529 – systemd: DHCP FORCERENEW authentication not implemented can cause a system running the DHCP client to have its network reconfigured
https://notcve.org/view.php?id=CVE-2020-13529
10 May 2021 — An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server. Se presenta una vulnerabilidad de denegación de servicio explotable en Systemd 245. Un paquete DHCP FORCERENEW especialmente diseñado puede hacer que un servidor que ejecuta el cliente DHCP sea vulnerable a un ataque ... • http://www.openwall.com/lists/oss-security/2021/08/04/2 • CWE-290: Authentication Bypass by Spoofing CWE-306: Missing Authentication for Critical Function •
CVSS: 6.7EPSS: 0%CPEs: 4EXPL: 0CVE-2020-13776 – systemd: Mishandles numerical usernames beginning with decimal digits or 0x followed by hexadecimal digits
https://notcve.org/view.php?id=CVE-2020-13776
03 Jun 2020 — systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082. systemd versiones hasta v245 maneja inapropiadamente los nombres de usuario numéricos, tales como los compuestos por dígitos decimales o 0x seguidos de dígitos hexadecimales, como es demostrado por el uso de privilegio... • https://github.com/systemd/systemd/issues/15985 • CWE-269: Improper Privilege Management CWE-440: Expected Behavior Violation •