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CVSS: 5.0EPSS: 1%CPEs: 116EXPL: 0

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack. parser.c en libxml2 anterior a 2.9.2 no previene debidamente la expansión de entidades incluso cuando la substitución de entidades haya sido deshabilitada, lo que permite a atacantes dependientes de contexto causar una denegación de servicio (consumo de CPU) a través de un documento XML manipualdo que contiene un número grande de referencias de entidades anidadas, una variante del ataque del 'billón de risas'. A denial of service flaw was found in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML file that, when processed by an application using libxml2, would lead to excessive CPU consumption (denial of service) based on excessive entity substitutions, even if entity substitution was disabled, which is the parser default behavior. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Aug/msg00002.html http://lists.opensuse.org/opensuse-updates/2014-10/msg00034.html http://lists.opensuse.org/opensuse-updates/2015-12/msg00120.html http://rhn.redhat.com/errata/RHSA-2014-1655.html http://rhn.redhat.com/errata/RHSA-2014-1885.html http://secunia.com/advisories/59903 http://s • CWE-400: Uncontrolled Resource Consumption •

CVSS: 6.8EPSS: 1%CPEs: 16EXPL: 0

wpa_supplicant and hostapd 0.7.2 through 2.2, when running with certain configurations and using wpa_cli or hostapd_cli with action scripts, allows remote attackers to execute arbitrary commands via a crafted frame. wpa_supplicant y hostapd 0.7.2 hasta 2.2 cuando se ejecutan ciertas configuraciones y se utilizan los secuencias de comandos using_wpa_cli o hostapd_cli, permite a atacantes remotos ejecutar comandos arbitrarios a través de un frame manipulado. A command injection flaw was found in the way the wpa_cli utility executed action scripts. If wpa_cli was run in daemon mode to execute an action script (specified using the -a command line option), and wpa_supplicant was configured to connect to a P2P group, malicious P2P group parameters could cause wpa_cli to execute arbitrary code. • http://advisories.mageia.org/MGASA-2014-0429.html http://lists.opensuse.org/opensuse-security-announce/2014-11/msg00000.html http://lists.opensuse.org/opensuse-updates/2014-10/msg00027.html http://lists.opensuse.org/opensuse-updates/2014-10/msg00028.html http://rhn.redhat.com/errata/RHSA-2014-1956.html http://secunia.com/advisories/60366 http://secunia.com/advisories/60428 http://secunia.com/advisories/61271 http://w1.fi/security/2014-1 http://www.debian.org/security/2014/ • CWE-20: Improper Input Validation CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call. La función do_umount en fs/namespace.c en el kernel de Linux hasta 3.17 no requiere la capacidad CAP_SYS_ADMIN para llamadas do_remount_sb que cambian el sistema de ficheros root a sólo lectura, lo que permite a usuarios locales causar una denegación de servicio (pérdida de la habilidad de escritura) mediante la realización de ciertas llamadas a la liberación de sistemas, la limpieza del indicador / MNT_LOCKED, y la realización de una llamada al sistema umount MNT_FORCE. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5 http://secunia.com/advisories/60174 http://secunia.com/advisories/61145 http://secunia.com/advisories/62633 http://secunia.com/advisories/62634 http://thread.gmane.org/gmane.linux.kernel.stable/109312 http://www.openwall.com/lists/oss-security/2014/10/08/22 http://www.securityfocus.com/bid/70314 http://www.securitytracker.com/id/1031180 http://www.ubuntu.com/usn/US •

CVSS: 5.0EPSS: 7%CPEs: 31EXPL: 0

The cache_merge_headers_out function in modules/cache/cache_util.c in the mod_cache module in the Apache HTTP Server before 2.4.11 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty HTTP Content-Type header. La función cache_merge_headers_out en modules/cache/cache_util.c en el módulo mod_cache en el servidor Apache HTTP anterior a 2.4.11 permite a atacantes remotos causar una denegación de servicio (referencia a puntero nulo y caída de la aplicación) a través de una cabecera HTTP Content-Type vacía. A NULL pointer dereference flaw was found in the way the mod_cache httpd module handled Content-Type headers. A malicious HTTP server could cause the httpd child process to crash when the Apache HTTP server was configured to proxy to a server with caching enabled. • http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html http://rhn.redhat.com/errata/RHSA-2015-0325.html http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup&pathrev=1627749 http://svn.apache.org/viewvc?view=revision&revision=1624234 http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htm • CWE-476: NULL Pointer Dereference •

CVSS: 2.9EPSS: 0%CPEs: 25EXPL: 0

The VGA emulator in QEMU allows local guest users to read host memory by setting the display to a high resolution. El emulador VGA en QEMU permite a usuarios locales invitados leer la memoria del anfitrión mediante la configuración de la pantalla a una resolución alta. An information leak flaw was found in the way QEMU's VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ab9509cceabef28071e41bdfa073083859c949a7 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=c1b886c45dc70f247300f549dce9833f3fa2def5 http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html http://rhn.redhat.com/errata/RHSA-2014-1669.html http://rhn.redhat.com/errata/RHSA-2014-1670.html http://rhn.redhat.com/errata/RHSA-2014-1941.html http://secunia.com/advisories/61829 http://support.citrix.com/article/CTX200892 http://www.de • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •