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CVSS: 6.9EPSS: 0%CPEs: 2EXPL: 1

Stack-based buffer overflow in sys/kern/vfs_mount.c in the kernel in FreeBSD 7.0 and 7.1, when vfs.usermount is enabled, allows local users to gain privileges via a crafted (1) mount or (2) nmount system call, related to copying of "user defined data" in "certain error conditions." Desbordamiento de búfer basado en pila en sys/kern/vfs_mount.c del núcleo de FreeBSD 7.0 y 7.1, cuando vfs.usermount está habilitado; permite a usuarios locales obtener privilegios a través de una llamada al sistema manipulada a (1) mount o (2) nmount. Está relacionado con la copia de "datos definidos por el usuario" en "determinadas condiciones de error". • https://www.exploit-db.com/exploits/9082 http://security.FreeBSD.org/advisories/FreeBSD-SA-08:08.nmount.asc http://www.securityfocus.com/bid/31002 http://www.securitytracker.com/id?1020816 https://exchange.xforce.ibmcloud.com/vulnerabilities/45143 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.2EPSS: 0%CPEs: 3EXPL: 0

The kernel in FreeBSD 6.3 through 7.0 on amd64 platforms can make an extra swapgs call after a General Protection Fault (GPF), which allows local users to gain privileges by triggering a GPF during the kernel's return from (1) an interrupt, (2) a trap, or (3) a system call. El kernel de FreeBSD 6.3 hasta 7.0 en las plataformas de amd64 , puede hacer excesivas llamadas swapgs después de un Fallo General de Protección -General Protection Fault (GPF)-; esto permite a usuarios locales obtener privilegios provocando un Fallo General de Protección durante el regreso del kernel desde (1) una interrupción, (2) un paso del proceso de modo de usuario a modo kernel, o (3) una llamada al sistema. • http://secunia.com/advisories/31743 http://security.freebsd.org/advisories/FreeBSD-SA-08:07.amd64.asc http://www.securityfocus.com/bid/31003 http://www.securitytracker.com/id?1020815 https://exchange.xforce.ibmcloud.com/vulnerabilities/44905 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 3

Multiple integer overflows in libc in NetBSD 4.x, FreeBSD 6.x and 7.x, and probably other BSD and Apple Mac OS platforms allow context-dependent attackers to execute arbitrary code via large values of certain integer fields in the format argument to (1) the strfmon function in lib/libc/stdlib/strfmon.c, related to the GET_NUMBER macro; and (2) the printf function, related to left_prec and right_prec. Múltiples desbordamientos de entero en libc de NetBSD 4.x, FreeBSD 6.x y 7.x, y posiblemente otras plataformas BSD y Apple Mac OS permiten a atacantes dependientes del contexto ejecutar código de su elección a través de valores de ciertos campos de enteros en el argumento de formato de (1) la función strfmon en lib/libc/stdlib/strfmon.c, en relación a la macro GET_NUMBER; y (2) la función printf, en relación a left_prec y right_prec. • https://www.exploit-db.com/exploits/31550 http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/strfmon.c http://lists.apple.com/archives/security-announce//2008//Dec/msg00000.html http://secunia.com/advisories/29574 http://secunia.com/advisories/33179 http://securityreason.com/achievement_securityalert/53 http://securityreason.com/securityalert/3770 http://support.apple.com/kb/HT3338 http://www.debian.org/security/2010/dsa-2058 http://www.securityfocus.com/archive/1/490 • CWE-189: Numeric Errors •

CVSS: 4.6EPSS: 0%CPEs: 5EXPL: 4

Stack-based buffer overflow in the command_Expand_Interpret function in command.c in ppp (aka user-ppp), as distributed in FreeBSD 6.3 and 7.0, OpenBSD 4.1 and 4.2, and the net/userppp package for NetBSD, allows local users to gain privileges via long commands containing "~" characters. Desbordamiento de búfer basado en pila en la función command_Expand_Interpret de command.c en ppp (aka user-ppp), como se distribuyó en FreeBSD 6.3 y 7.0, OpenBSD 4.1 y 4.2, y el paquete net/userppp para NetBSD, permite a usuarios locales obtener privilegios a través de comandos largos que contienen los caracteres "~". • https://www.exploit-db.com/exploits/31333 http://secunia.com/advisories/29234 http://secunia.com/advisories/29238 http://secunia.com/advisories/29240 http://www.openbsd.org/errata41.html#014_ppp http://www.openbsd.org/errata42.html#009_ppp http://www.securityfocus.com/archive/82/488980/30/0/threaded http://www.securityfocus.com/archive/82/489031/30/0/threaded http://www.securityfocus.com/bid/28090 https://exchange.xforce.ibmcloud.com/vulnerabilities/41034 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 6.8EPSS: 2%CPEs: 198EXPL: 0

A certain pseudo-random number generator (PRNG) algorithm that uses ADD with 0 random hops (aka "Algorithm A0"), as used in OpenBSD 3.5 through 4.2 and NetBSD 1.6.2 through 4.0, allows remote attackers to guess sensitive values such as (1) DNS transaction IDs or (2) IP fragmentation IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as DNS cache poisoning, injection into TCP packets, and OS fingerprinting. Cierto algoritmo generador de números pseudo-aleatorios(PRNG) que usa ADD con 0 saltos aleatorios(también conocido como "algoritmo A0"), usado en OpenBSD de la v3.5 a la 4.2 y NetBSD v1.6.2 a la 4.0, permite a atacantes remotos adivinar datos sensibles como (1)los IDs de una transacción DNS, (2)IDs de una fragmentación IP observando una secuencias generadas previamente. NOTA: este fallo puede ser aprovechado por ataques como el envenenamiento de la cachés DNS, la inyección de paquetes TCP y OS fingerprinting. • http://secunia.com/advisories/28819 http://www.securiteam.com/securityreviews/5PP0H0UNGW.html http://www.securityfocus.com/archive/1/487658 http://www.securityfocus.com/bid/27647 http://www.trusteer.com/docs/OpenBSD_DNS_Cache_Poisoning_and_Multiple_OS_Predictable_IP_ID_Vulnerability.pdf https://exchange.xforce.ibmcloud.com/vulnerabilities/40329 https://exchange.xforce.ibmcloud.com/vulnerabilities/41157 •