Scientific Linux Security Update : kernel on SL6.x i386/x86_64

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

* A NULL pointer dereference flaw was found in the way the Linux
kernel's Stream Control Transmission Protocol (SCTP) implementation
handled simultaneous connections between the same hosts. A remote
attacker could use this flaw to crash the system. (CVE-2014-5077,
Important)

* An integer overflow flaw was found in the way the Linux kernel's
Frame Buffer device implementation mapped kernel memory to user space
via the mmap syscall. A local user able to access a frame buffer
device file (/dev/fb*) could possibly use this flaw to escalate their
privileges on the system. (CVE-2013-2596, Important)

* A flaw was found in the way the ipc_rcu_putref() function in the
Linux kernel's IPC implementation handled reference counter
decrementing. A local, unprivileged user could use this flaw to
trigger an Out of Memory (OOM) condition and, potentially, crash the
system. (CVE-2013-4483, Moderate)

* It was found that the permission checks performed by the Linux
kernel when a netlink message was received were not sufficient. A
local, unprivileged user could potentially bypass these restrictions
by passing a netlink socket as stdout or stderr to a more privileged
process and altering the output of this process. (CVE-2014-0181,
Moderate)

* It was found that the try_to_unmap_cluster() function in the Linux
kernel's Memory Managment subsystem did not properly handle page
locking in certain cases, which could potentially trigger the BUG_ON()
macro in the mlock_vma_page() function. A local, unprivileged user
could use this flaw to crash the system. (CVE-2014-3122, Moderate)

* A flaw was found in the way the Linux kernel's kvm_iommu_map_pages()
function handled IOMMU mapping failures. A privileged user in a guest
with an assigned host device could use this flaw to crash the host.
(CVE-2014-3601, Moderate)

* Multiple use-after-free flaws were found in the way the Linux
kernel's Advanced Linux Sound Architecture (ALSA) implementation
handled user controls. A local, privileged user could use either of
these flaws to crash the system. (CVE-2014-4653, CVE-2014-4654,
CVE-2014-4655, Moderate)

* A flaw was found in the way the Linux kernel's VFS subsystem handled
reference counting when performing unmount operations on symbolic
links. A local, unprivileged user could use this flaw to exhaust all
available memory on the system or, potentially, trigger a
use-after-free error, resulting in a system crash or privilege
escalation. (CVE-2014-5045, Moderate)

* An integer overflow flaw was found in the way the
lzo1x_decompress_safe() function of the Linux kernel's LZO
implementation processed Literal Runs. A local attacker could, in
extremely rare cases, use this flaw to crash the system or,
potentially, escalate their privileges on the system. (CVE-2014-4608,
Low)

The system must be rebooted for this update to take effect.

See also :

http://www.nessus.org/u?70d658ca

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 78845 ()

Bugtraq ID:

CVE ID: CVE-2013-2596
CVE-2013-4483
CVE-2014-0181
CVE-2014-3122
CVE-2014-3601
CVE-2014-4608
CVE-2014-4653
CVE-2014-4654
CVE-2014-4655
CVE-2014-5045
CVE-2014-5077

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