CVE-2016-1887 – FreeBSD Kernel (FreeBSD 10.2 x64) - 'sendmsg' Kernel Heap Overflow (PoC)
https://notcve.org/view.php?id=CVE-2016-1887
Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow. Error de entero sin signo en la función sockargs en sys/kern/uipc_syscalls.c en FreeBSD 10.1 en versiones anteriores a p34, 10.2 en versiones anteriores a p17 y 10.3 en versiones anteriores a p3 permite a usuarios locales provocar una denegación de servicio (sobreescritura de memoria y kernel panic) u obtener privilegios a través de un argumento buflen negativo, lo que desencadena un desbordamiento de buffer basado en memoria dinámica. • https://www.exploit-db.com/exploits/44212 http://cturt.github.io/sendmsg.html http://www.securitytracker.com/id/1035906 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:19.sendmsg.asc • CWE-264: Permissions, Privileges, and Access Controls •
CVE-2016-1886 – FreeBSD Kernel (FreeBSD 10.2 < 10.3 x64) - 'SETFKEY' (PoC)
https://notcve.org/view.php?id=CVE-2016-1886
Integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in FreeBSD 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a SETFKEY ioctl call, which triggers a "two way heap and stack overflow." Error de entero sin signo en la función genkbd_commonioctl en sys/dev/kbd/kbd.c en FreeBSD 9.3 en versiones anteriores a p42, 10.1 en versiones anteriores a p34, 10.2 en versiones anteriores a p17 y 10.3 en versiones anteriores a p3 permite a usuarios locales obtener información sensible de la memoria del kernel, causar una denegación de servicio (sobrescribir memoria y caída del kernel), u obtener privilegios a través de un valor negativo en el mimebro de estructura flen en el argumento arg en una llamada SETFKEY ioctl, lo que desencadena un "desbordamiento de pila y memoria dinámica en dos sentidos" • https://www.exploit-db.com/exploits/44211 http://cturt.github.io/SETFKEY.html http://www.securityfocus.com/bid/90734 http://www.securitytracker.com/id/1035905 https://security.FreeBSD.org/patches/SA-16:18/atkbd.patch https://www.freebsd.org/security/advisories/FreeBSD-SA-16:18.atkbd.asc • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2016-2518 – ntp: out-of-bounds references on crafted packet
https://notcve.org/view.php?id=CVE-2016-2518
The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value. La función MATCH_ASSOC en NTP en versiones anteriores 4.2.8p9 y 4.3.x en versiones anteriores a 4.3.92 permite a atacantes remotos provocar una referencia fuera de los límites a través de una solicitud addpeer con un valor hmode grande. An out-of-bounds access flaw was found in the way ntpd processed certain packets. An authenticated attacker could use a crafted packet to create a peer association with hmode of 7 and larger, which could potentially (although highly unlikely) cause ntpd to crash. • http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016& • CWE-125: Out-of-bounds Read •
CVE-2016-1885 – FreeBSD 10.2 (x64) - 'amd64_set_ldt' Heap Overflow
https://notcve.org/view.php?id=CVE-2016-1885
Integer signedness error in the amd64_set_ldt function in sys/amd64/amd64/sys_machdep.c in FreeBSD 9.3 before p39, 10.1 before p31, and 10.2 before p14 allows local users to cause a denial of service (kernel panic) via an i386_set_ldt system call, which triggers a heap-based buffer overflow. Error de entero sin signo en la función amd64_set_ldt en sys/amd64/amd64/sys_machdep.c en FreeBSD 9.3 en versiones anteriores a p39, 10.1 en versiones anteriores a p31 y 10.2 en versiones anteriores a p14 permite a usuarios locales provocar una denegación de servicio (pánico en el kernel) a través de una llamada i386_set_ldt system, lo que desencadena un desbordamiento de buffer basado en memoria dinámica. • https://www.exploit-db.com/exploits/39570 http://packetstormsecurity.com/files/136276/FreeBSD-Kernel-amd64_set_ldt-Heap-Overflow.html http://seclists.org/fulldisclosure/2016/Mar/56 http://seclists.org/fulldisclosure/2016/Mar/67 http://www.coresecurity.com/advisories/freebsd-kernel-amd64setldt-heap-overflow http://www.securityfocus.com/archive/1/537812/100/0/threaded http://www.securityfocus.com/archive/1/537813/100/0/threaded http://www.securitytracker.com/id/1035309 https://security.Free • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2015-7977 – ntp: restriction list NULL pointer dereference
https://notcve.org/view.php?id=CVE-2015-7977
ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command. ntpd en NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 permite a atacantes remotos provocar una denegación de servicio (referencia a puntero NULL) mediante un comando ntpdc reslist. A NULL pointer dereference flaw was found in the way ntpd processed 'ntpdc reslist' commands that queried restriction lists with a large amount of entries. A remote attacker could potentially use this flaw to crash ntpd. • http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html http://lists.opensuse.org/opensuse-security-announce • CWE-476: NULL Pointer Dereference •