Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation:
CVE-2014-3144 / CVE-2014-3145
A local user can cause a denial of service (system crash) via
crafted BPF instructions.
CVE-2014-3153
Pinkie Pie discovered an issue in the futex subsystem that allows a
local user to gain ring 0 control via the futex syscall. An
unprivileged user could use this flaw to crash the kernel (resulting
in denial of service) or for privilege escalation.
3.2.57-3+deb7u2