The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in the Linux kernel before 3.12.4 does not ensure that a certain length value is consistent with the size of an associated data structure, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.
Exploitability
AV:LAC:LAu:NImpact
C:CI:NA:N4.9/AV:L/AC:L/Au:N/C:C/I:N/A:N