CVE-2012-3375 – Linux Kernel 3.2.24 - 'fs/eventpoll.c' Local Denial of Service
https://notcve.org/view.php?id=CVE-2012-3375
The epoll_ctl system call in fs/eventpoll.c in the Linux kernel before 3.2.24 does not properly handle ELOOP errors in EPOLL_CTL_ADD operations, which allows local users to cause a denial of service (file-descriptor consumption and system crash) via a crafted application that attempts to create a circular epoll dependency. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083. La llamada al sistema epoll_ctl en fs/eventpoll.c en el Kernel de Linux anteriores a v3.2.24 no gestiona de forma adecuada errores ELOOP en operaciones EPOLL_CTL_ADD, lo que permite a usuarios locales provocar una denegación de servicio (consumo de descriptores de ficheros y caída del sistema) a través de una aplicación manipulada que intenta crear una dependencia epoll circular. NOTA: esta vulnerabilidad existe debido a una resolución incorrecta de CVE-2011-1083. The Linux kernel suffers from a local denial of service vulnerability in fs/eventpoll.c. • https://www.exploit-db.com/exploits/19605 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13d518074a952d33d47c428419693f63389547e9 http://secunia.com/advisories/51164 http://ubuntu.com/usn/usn-1529-1 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24 http://www.openwall.com/lists/oss-security/2012/07/04/2 http://www.securitytracker.com/id?1027237 https://bugzilla.redhat.com/show_bug.cgi?id=837502 https://downloads.avaya.com& •
CVE-2012-2127
https://notcve.org/view.php?id=CVE-2012-2127
fs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not properly interact with CLONE_NEWPID clone system calls, which allows remote attackers to cause a denial of service (reference leak and memory consumption) by making many connections to a daemon that uses PID namespaces to isolate clients, as demonstrated by vsftpd. fs/proc/root.c en las implementaciones de procfs del kernel de Linux anteriores a v3.2 no interactua adecuadamente con las llamadas al sistema de CLONE_NEWPID, lo que permite a atacantes remotos provocar una denegación de servicio (pérdida de referencia y consumo excesivo de memoria), haciendo muchas conexiones a un demonio que usa namespaces PID para aislar a los clientes, como lo demuestra vsftpd. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 http://ubuntu.com/usn/usn-1607-1 http://www.kernel.org/pub/linux/kernel/v3.x http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.bz2 http://www.openwall.com/lists/oss-security/2012/04/20/25 http://www.openwall.com/lists/oss-security/2012/04/22/1 http://www.securityfocus.com/bid/55774 http://www.ubuntu.com/usn/USN-1594-1 https:& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2011-4913
https://notcve.org/view.php?id=CVE-2011-4913
The rose_parse_ccitt function in net/rose/rose_subr.c in the Linux kernel before 2.6.39 does not validate the FAC_CCITT_DEST_NSAP and FAC_CCITT_SRC_NSAP fields, which allows remote attackers to (1) cause a denial of service (integer underflow, heap memory corruption, and panic) via a small length value in data sent to a ROSE socket, or (2) conduct stack-based buffer overflow attacks via a large length value in data sent to a ROSE socket. La función rose_parse_ccitt en la net/rose/rose_subr.c en el kernel de Linux en versiones anteriores a la v2.6.39 no valida los campos FAC_CCITT_DEST_NSAP y FAC_CCITT_SRC_NSAP, lo que permite a atacantes remotos (1) provocar una denegación de servicio (desbordamiento de enteros, corrupción de memoria dinámica, y 'panic' del kernel) a través de un valor de longitud pequeña en los datos enviados a un 'socket' ROSE, o (2) llevar a cabo ataques de desbordamiento de pila basados ??en buffer a través de un valor de longitud demasiado grande en los datos enviados a un 'socket' ROSE. • http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=be20250c13f88375345ad99950190685eda51eb8 http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html http://www.openwall.com/lists/oss-security/2011/12/28/2 https://bugzilla.redhat.com/show_bug.cgi?id=770777 https://github.com/torvalds/linux/commit/be20250c13f88375345ad99950190685eda51eb8 • CWE-20: Improper Input Validation •
CVE-2011-1023 – kernel: BUG_ON() in rds_send_xmit()
https://notcve.org/view.php?id=CVE-2011-1023
The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation. El subsistema 'Reliable Datagram Sockets' (SDR) del kernel de Linux en versiones anteriores a v2.6.38 no gestiona correctamente las actualizaciones del mapa de congestiones, lo que permite a usuarios locales causar una denegación de servicio (caída del sistema) a través de vectores relacionados con (1) una opeeración de transmisión 'loopback' (loop) o (2) una operación de transmisión 'InfiniBand' (ib). • http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6094628bfd94323fc1cea05ec2c6affd98c18f7f http://www.openwall.com/lists/oss-security/2011/03/03/2 https://bugzilla.redhat.com/show_bug.cgi?id=680345 https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f https://access.redhat.com/security/cve/CVE-2011-1023 •
CVE-2010-4648 – kernel: orinoco: fix TKIP countermeasure behaviour
https://notcve.org/view.php?id=CVE-2010-4648
The orinoco_ioctl_set_auth function in drivers/net/wireless/orinoco/wext.c in the Linux kernel before 2.6.37 does not properly implement a TKIP protection mechanism, which makes it easier for remote attackers to obtain access to a Wi-Fi network by reading Wi-Fi frames. La función de orinoco_ioctl_set_auth en drivers/net/wireless/orinoco/wext.c en el kernel de Linux en vesiones anteriores a la v2.6.37 no implementa un mecanismo de protección TKIP, lo que facilita a los atacantes remotos a la hora de obtener acceso a una red Wi-Fi mediante la lectura de frames Wi-Fi. • http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0a54917c3fc295cb61f3fb52373c173fd3b69f48 http://www.openwall.com/lists/oss-security/2011/01/06/18 https://bugzilla.redhat.com/show_bug.cgi?id=667907 https://github.com/torvalds/linux/commit/0a54917c3fc295cb61f3fb52373c173fd3b69f48 https://access.redhat.com/security/cve/CVE-2010-4648 •