This script is Copyright (C) 2017 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
Security Fix(es) :
- Linux kernel built with the Kernel-based Virtual Machine
(CONFIG_KVM) support is vulnerable to a NULL pointer
dereference flaw. It could occur on x86 platform, when
emulating an undefined instruction. An attacker could
use this flaw to crash the host kernel resulting in DoS.
- A race condition issue leading to a use-after-free flaw
was found in the way the raw packet sockets
implementation in the Linux kernel networking subsystem
handled synchronization while creating the TPACKET_V3
ring buffer. A local user able to open a raw packet
socket (requires the CAP_NET_RAW capability) could use
this flaw to elevate their privileges on the system.
- A flaw was discovered in the Linux kernel's
implementation of VFIO. An attacker issuing an ioctl can
create a situation where memory is corrupted and modify
memory outside of the expected area. This may overwrite
kernel memory and subvert kernel execution.
- The use of a kzalloc with an integer multiplication
allowed an integer overflow condition to be reached in
vfio_pci_intrs.c. This combined with CVE-2016-9083 may
allow an attacker to craft an attack and use unallocated
memory, potentially crashing the machine.
See also :
Update the affected packages.
Risk factor :
High / CVSS Base Score : 7.2
Public Exploit Available : true