Description: | The __tun_chr_ioctl function in drivers/net/tun.c in the Linux kernel before 3.6 does not initialize a certain structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted application. Mathias Krause discovered an information leak in the Linux kernel's TUN/TAP device driver. A local user could exploit this flaw to examine part of the kernel's stack memory.
|