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CVSS: 5.0EPSS: 2%CPEs: 7EXPL: 0

OpenBSD 3.4 and NetBSD 1.6 and 1.6.1 allow remote attackers to cause a denial of service (crash) by sending an IPv6 packet with a small MTU to a listening port and then issuing a TCP connect to that port. OpenBSD 3.4 y NetBSD 1.6 y 1.6.1 permiten a atacantes remotos causar una denegación de servicio (caida) enviand un paquete IPv6 con una MTU pequeña a un puerto en escucha y a continuación un conectar TCP a ese puerto. • ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-002.txt.asc http://lists.grok.org.uk/pipermail/full-disclosure/2004-February/016704.html http://marc.info/?l=bugtraq&m=107604603226564&w=2 http://www.guninski.com/obsdmtu.html http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet6/ip6_output.c http://www.osvdb.org/3825 http://www.securityfocus.com/bid/9577 https://exchange.xforce.ibmcloud.com/vulnerabilities/15044 •

CVSS: 5.0EPSS: 0%CPEs: 20EXPL: 8

TCP, when using a large Window Size, makes it easier for remote attackers to guess sequence numbers and cause a denial of service (connection loss) to persistent TCP connections by repeatedly injecting a TCP RST packet, especially in protocols that use long-lived connections, such as BGP. TCP, cuando se usa un tamaño de ventana de transmisión grande, hace más fácil a atacantes remotos adivinar números de secuencia y causar una denegación de servicio (pérdida de la conexión) en conexiones TCP persistentes inyectando repetidamente un paquete TCP RST, especialmente en protocolos que usan conexiones de vida larga, como BGP. • https://www.exploit-db.com/exploits/291 https://www.exploit-db.com/exploits/24030 https://www.exploit-db.com/exploits/24031 https://www.exploit-db.com/exploits/24033 https://www.exploit-db.com/exploits/24032 https://www.exploit-db.com/exploits/942 https://www.exploit-db.com/exploits/276 ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-006.txt.asc ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.3/SCOSA-2005.3.txt ftp://ftp.sco.com/ •

CVSS: 4.6EPSS: 0%CPEs: 3EXPL: 1

The shmat system call in the System V Shared Memory interface for FreeBSD 5.2 and earlier, NetBSD 1.3 and earlier, and OpenBSD 2.6 and earlier, does not properly decrement a shared memory segment's reference count when the vm_map_find function fails, which could allow local users to gain read or write access to a portion of kernel memory and gain privileges. La llamada de sistema shmat en el interfaz de Memoria Compartida de Sistema V de FreeBSD 5.2 y anteriores, NetBSD 1.3 y anteriores, y OpenBSD 2.6 y anteriores, no decrementa adecuadamente un contador de referencias de segmentos de memoria compartidos cuando al función vm_map_find falla, lo que podría permitir a usuarios locales ganar acceso de lectura y escritura a una porción de memoria del kernel y ganar privilegios. • https://www.exploit-db.com/exploits/23655 ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:02.shmat.asc ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-004.txt.asc http://marc.info/?l=bugtraq&m=107608375207601&w=2 http://www.openbsd.org/errata33.html#sysvshm http://www.osvdb.org/3836 http://www.pine.nl/press/pine-cert-20040201.txt http://www.securityfocus.com/bid/9586 https://exchange.xforce.ibmcloud.com/vulnerabilities/15061 •

CVSS: 2.1EPSS: 0%CPEs: 8EXPL: 0

The iBCS2 system call translator for statfs in NetBSD 1.5 through 1.5.3 and FreeBSD 4 up to 4.8-RELEASE-p2 and 5 up to 5.1-RELEASE-p1 allows local users to read portions of kernel memory (memory disclosure) via a large length parameter, which copies additional kernel memory into userland memory. • ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-03:10.ibcs2.asc http://secunia.com/advisories/9504 http://securitytracker.com/id?1007460 http://www.osvdb.org/2406 https://exchange.xforce.ibmcloud.com/vulnerabilities/12892 •

CVSS: 4.3EPSS: 2%CPEs: 58EXPL: 0

ISC BIND 8.3.x before 8.3.7, and 8.4.x before 8.4.3, allows remote attackers to poison the cache via a malicious name server that returns negative responses with a large TTL (time-to-live) value. ISC BIND 8.3.x antes de 8.3.7, y 8.4.x antes de 8.4.3 permite a atacantes remotos envenenar la cache mediante un servidor de nombres malicioso que devuelve respuestas negativas con un valor TTL (time to live) largo. • ftp://ftp.sco.com/pub/updates/OpenLinux/3.1.1/Server/CSSA-2004-003.0/CSSA-2004-003.0.txt ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.33/CSSA-2003-SCO.33.txt http://secunia.com/advisories/10542 http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57434 http://www.debian.org/security/2004/dsa-409 http://www.kb.cert.org/vuls/id/734644 http://www.trustix.org/errata/misc/2003/TSL-2003-0044-bind.asc.txt https://oval.cisecurity.org/repository& •