CVE-2017-9217
https://notcve.org/view.php?id=CVE-2017-9217
systemd-resolved through 233 allows remote attackers to cause a denial of service (daemon crash) via a crafted DNS response with an empty question section. systemd-resolved hasta la versión 223 permite a los atacantes remotos provocar una denegación de servicio (daemon crash) mediante una respuesta DNS manipulada con un sección de preguntas vacía. • http://www.securityfocus.com/bid/98677 https://github.com/systemd/systemd/commit/a924f43f30f9c4acaf70618dd2a055f8b0f166be https://github.com/systemd/systemd/pull/5998 https://launchpad.net/bugs/1621396 • CWE-476: NULL Pointer Dereference •
CVE-2016-10156 – Systemd 228 (SUSE 12 SP2 / Ubuntu Touch 15.04) - Local Privilege Escalation
https://notcve.org/view.php?id=CVE-2016-10156
A flaw in systemd v228 in /src/basic/fs-util.c caused world writable suid files to be created when using the systemd timers features, allowing local attackers to escalate their privileges to root. This is fixed in v229. Un fallo en systemd v228 en /src/basic/fs-util.c causó que los archivos suid de escritura universal se crearan cuando se usan las características de los temporizadores systemd, permitiendo a atacantes locales escalar sus privilegios a root. Esto se soluciona en v229. • https://www.exploit-db.com/exploits/41171 http://www.securityfocus.com/bid/95790 http://www.securitytracker.com/id/1037686 https://bugzilla.suse.com/show_bug.cgi?id=1020601 https://github.com/systemd/systemd/commit/06eeacb6fe029804f296b065b3ce91e796e1cd0e https://github.com/systemd/systemd/commit/ee735086f8670be1591fa9593e80dd60163a7a2f • CWE-264: Permissions, Privileges, and Access Controls •
CVE-2016-7795 – systemd: Assertion failure when PID 1 receives a zero-length message over notify socket
https://notcve.org/view.php?id=CVE-2016-7795
The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket. La función manager_invoke_notify_message en systemd 231 y versiones anteriores permite a usuarios locales provocar una denegación de servicio (fallo de afirmación y colgado de PID 1) a través de un mensaje de longitud cero recibido sobre una notificación de encaje. A flaw was found in the way systemd handled empty notification messages. A local attacker could use this flaw to make systemd freeze its execution, preventing further management of system services, system shutdown, or zombie process collection via systemd. • http://rhn.redhat.com/errata/RHSA-2016-2610.html http://rhn.redhat.com/errata/RHSA-2016-2694.html http://www.openwall.com/lists/oss-security/2016/09/28/9 http://www.openwall.com/lists/oss-security/2016/09/30/1 http://www.securityfocus.com/bid/93223 http://www.securitytracker.com/id/1037320 http://www.ubuntu.com/usn/USN-3094-1 https://github.com/systemd/systemd/issues/4234 https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet https:/ • CWE-20: Improper Input Validation CWE-617: Reachable Assertion •
CVE-2016-7796 – systemd: freeze when PID 1 receives a zero-length message over notify socket
https://notcve.org/view.php?id=CVE-2016-7796
The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled. La función manager_dispatch_notify_fd en systemd permite a usuarios locales provocar una denegación de servicio (colgado de sistema) a través de un mensaje de longitud cero recibido sobre una notificación de encaje, lo que provoca que se devuelva un error y que el controlador de notificación se desactive. A flaw was found in the way systemd handled empty notification messages. A local attacker could use this flaw to make systemd freeze its execution, preventing further management of system services, system shutdown, or zombie process collection via systemd. • http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html http://rhn.redhat.com/errata/RHSA-2017-0003.html http://www.openwall.com/lists/oss-security/2016/09/30/1 http://www.securityfocus.com/bid/93250 http://www.securitytracker.com/id/1037320 https://bugzilla.redhat.com/show_bug.cgi?id=1381911 https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 https://rhn.redhat.com/e • CWE-20: Improper Input Validation CWE-253: Incorrect Check of Function Return Value •
CVE-2013-4392
https://notcve.org/view.php?id=CVE-2013-4392
systemd, when updating file permissions, allows local users to change the permissions and SELinux security contexts for arbitrary files via a symlink attack on unspecified files. systemd, cuando actualiza los permisos de los archivos, permite a usuarios locales cambiar los permisos y el contextos de seguridad de SELinux para los archivos de su elección a través de un ataque de enlaces simbólicos en los ficheros especificados. • http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357 http://www.openwall.com/lists/oss-security/2013/10/01/9 https://bugzilla.redhat.com/show_bug.cgi?id=859060 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •