CVE-2010-4165

La función do_tcp_setsockopt de net/ipv4/tcp.c en el kernel de Linux anterior a 2.6.37-rc2 no restringe adecuadamente los valores TCP_MAXSEG (también conocidos como MSS), esto permite a usuarios locales provocar una denegación de servicio (OOPS) mediante una llamada setsockopt que especifica un valor pequeño, lo que conduce a un error de división entre cero o un uso incorrecto de un entero asignado.

Multiple vulnerabilities have been discovered and fixed in the Linux 2.6 kernel. The X.25 implementation does not properly parse facilities, which allows remote attackers to cause a denial of service (heap memory corruption and panic) or possibly have unspecified other impact via malformed data, a different vulnerability than CVE-2010-4164. The bcm_connect function Broadcast Manager in the Controller Area Network implementation in the Linux creates a publicly accessible file with a filename containing a kernel memory address, which allows local users to obtain potentially sensitive information about kernel memory use by listing this filename. The install_special_mapping function in mm/mmap.c does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application. Various other issues have also been addressed.