CVE-2019-6454 – systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash
https://notcve.org/view.php?id=CVE-2019-6454
An issue was discovered in sd-bus in systemd 239. bus_process_object() in libsystemd/sd-bus/bus-objects.c allocates a variable-length stack buffer for temporarily storing the object path of incoming D-Bus messages. An unprivileged local user can exploit this by sending a specially crafted message to PID1, causing the stack pointer to jump over the stack guard pages into an unmapped memory region and trigger a denial of service (systemd PID1 crash and kernel panic). Se ha descubierto un problema en sd-bus en systemd 239. bus_process_object() en libsystemd/sd-bus/bus-objects.c asigna un búfer de pila de longitud variable para almacenar temporalmente la ruta de objeto de los mensajes D-Bus entrantes. Un usuario local sin privilegios puede explotar esto enviando un mensaje especialmente manipulado a PID1, provocando que el puntero de la pila salte por las páginas guard de la pila hasta una región de memoria no mapeada y desencadene una denegación de servicio (cierre inesperado del PID1 en systemd y pánico del kernel). It was discovered that systemd allocates a buffer large enough to store the path field of a dbus message without performing enough checks. • http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00070.html http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html http://www.openwall.com/lists/oss-security/2019/02/18/3 http://www.openwall.com/lists/oss-security/2019/02/19/1 http://www.openwall.com/lists/oss-security/2021/07/20/2 http://www.securityfocus.com/bid/107081 https://access.redhat.com/errata/RHSA-2019:0368 https://access.redhat.com/errata/RHSA-2019:0990 https://access • CWE-20: Improper Input Validation CWE-787: Out-of-bounds Write •
CVE-2019-3581 – McAfee Web Gateway denial of service attack due to Improper Input Validation
https://notcve.org/view.php?id=CVE-2019-3581
Improper input validation in the proxy component of McAfee Web Gateway 7.8.2.0 and later allows remote attackers to cause a denial of service via a crafted HTTP request parameter. Validación de entradas incorrecta en el componente proxy de McAfee Web Gateway, en versiones 7.8.2.0 y posteriores, permite que los atacantes remotos provoquen una denegación de servicio (DoS) mediante el parámetro HTTP request manipulado. • https://kc.mcafee.com/corporate/index?page=content&id=SB10264 • CWE-20: Improper Input Validation •
CVE-2018-18311 – perl: Integer overflow leading to buffer overflow in Perl_my_setenv()
https://notcve.org/view.php?id=CVE-2018-18311
Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations. Perl, en versiones anteriores a la 5.26.3 y versiones 5.28.0.x anteriores a la 5.28.1, tiene un desbordamiento de búfer mediante una expresión regular manipulada que desencadena operaciones inválidas de escritura. • http://seclists.org/fulldisclosure/2019/Mar/49 http://www.securityfocus.com/bid/106145 http://www.securitytracker.com/id/1042181 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2019:0001 https://access.redhat.com/errata/RHSA-2019:0010 https://access.redhat.com/errata/RHSA-2019:0109 https://access.redhat.com/errata/RHSA-2019:1790 https://access.redhat.com/errata/RHSA-2019:1942 https://access.redhat.com/errata/RHSA-2019:2400 https: • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •
CVE-2018-6678 – McAfee Web Gateway (MWG) - Configuration/Environment manipulation vulnerability
https://notcve.org/view.php?id=CVE-2018-6678
Configuration/Environment manipulation vulnerability in the administrative interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to execute arbitrary commands via unspecified vectors. Vulnerabilidad de manipulación de configuración/entorno en la interfaz administrativa en McAfee Web Gateway (MWG) MWG 7.8.1.x permite que usuarios administradores autenticados ejecuten comandos arbitrarios mediante vectores sin especificar. • http://www.securityfocus.com/bid/104893 https://kc.mcafee.com/corporate/index?page=content&id=SB10245 •
CVE-2018-6677 – McAfee Web Gateway (MWG) - Directory Traversal vulnerability
https://notcve.org/view.php?id=CVE-2018-6677
Directory Traversal vulnerability in the administrative user interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to gain elevated privileges via unspecified vectors. Vulnerabilidad de salto de directorio en la interfaz de usuario administrativo en McAfee Web Gateway (MWG) MWG 7.8.1.x permite que usuarios administradores autenticados obtengan privilegios elevados mediante vectores sin especificar. • http://www.securityfocus.com/bid/104893 https://kc.mcafee.com/corporate/index?page=content&id=SB10245 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •