CVE-2008-1146
https://notcve.org/view.php?id=CVE-2008-1146
A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 3-bit random hops (aka "Algorithm X3"), as used in OpenBSD 2.8 through 4.2, allows remote attackers to guess sensitive values such as DNS transaction IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as DNS cache poisoning against OpenBSD's modification of BIND. Cierto algoritmo generador de números pseudo-aleatorios(PRNG) que usa XOR y alterna en saltos de 3-bit (también conocido com o"algoritmo X3"), usado en OpenBSD de la v2.8 a la 4.2, permite a atacantes remotos adivinar datos sensibles como los IDs de una transacción DNS, observando una secuencia de datos generada previamente. NOTA: esta cuestión puede ser aprovechado por ataques como el envenenamiento de la caché DNS contra la modificación BIND en OpenBDS. • 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 •
CVE-2007-0343
https://notcve.org/view.php?id=CVE-2007-0343
OpenBSD before 20070116 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via certain IPv6 ICMP (aka ICMP6) echo request packets. OpenBSD anterior a 20070116 permite a atacantes remotos provocar una denegación de servicio (bucle infinito y agotamiento de CPU) a través de ciertos IPv6 ICMP (también conocido como ICMP6) repitiendo los paquetes de peticiones. • http://secunia.com/advisories/23830 http://securitytracker.com/id?1017518 http://www.openbsd.org/errata.html#icmp6 http://www.openbsd.org/errata39.html#icmp6 http://www.osvdb.org/32935 http://www.securityfocus.com/bid/22087 •
CVE-2006-5218
https://notcve.org/view.php?id=CVE-2006-5218
Integer overflow in the systrace_preprepl function (STRIOCREPLACE) in systrace in OpenBSD 3.9 and NetBSD 3 allows local users to cause a denial of service (crash), gain privileges, or read arbitrary kernel memory via large numeric arguments to the systrace ioctl. Desbordamiento de entero en la función systrace_preprepl (STRIOCREPLACE) en systrace de OpenBSD 3.9 y NetBSD 3 permite a usuarios locales provocar una denegación de servicio (caída), escalar privilegios, o leer memoria del núcleo de su elección mediante argumentos numéricos muy grandes en la llamada ioctl systrace. • http://openbsd.org/errata.html#systrace http://scary.beasts.org/security/CESA-2006-003.html http://secunia.com/advisories/22324 http://securitytracker.com/id?1017009 http://www.osvdb.org/29570 http://www.securityfocus.com/bid/20392 https://exchange.xforce.ibmcloud.com/vulnerabilities/29392 •
CVE-2006-4435
https://notcve.org/view.php?id=CVE-2006-4435
OpenBSD 3.8, 3.9, and possibly earlier versions allows context-dependent attackers to cause a denial of service (kernel panic) by allocating more semaphores than the default. OpenBSD 3.8, 3.9,y posiblemente versiones anteriores permiten a un atacante dependiente del contexto provocar denegación de servicio (kernel panic) destinando mas semaforos que los que hay por defecto. • http://secunia.com/advisories/21642 http://securitytracker.com/id?1016756 http://www.openbsd.org/errata.html#sem http://www.openbsd.org/errata38.html#sem http://www.osvdb.org/28195 http://www.securityfocus.com/bid/19713 https://exchange.xforce.ibmcloud.com/vulnerabilities/28617 •
CVE-2006-4436
https://notcve.org/view.php?id=CVE-2006-4436
isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection. isakmpd en OpenBSD 3.8, 3.9, y posiblemente versiones anetriores, crea Asociaciones de Seguridad (Security Associations o SA) con una ventana de respuesta de tamañoñ 0 cuando isakmpd actúa como respondedor durante una negociación SA, lo que permite a atacantes remotos repetir paquetes IPSec y evitar la protección contra repetición. • http://secunia.com/advisories/21652 http://secunia.com/advisories/21905 http://securitytracker.com/id?1016757 http://www.debian.org/security/2006/dsa-1175 http://www.openbsd.org/errata.html#isakmpd http://www.openbsd.org/errata38.html#isakmpd http://www.osvdb.org/28194 http://www.securityfocus.com/bid/19712 https://exchange.xforce.ibmcloud.com/vulnerabilities/28645 •