| Description: | Summary:
The remote host is missing an update for the 'kernel, kernel-userspace-headers, kmod-vboxadditions, kmod-virtualbox, kmod-xtables-addons' package(s) announced via the MGASA-2017-0063 advisory.
Vulnerability Insight:
This kernel update is based on upstream 4.4.50 and fixes at least
the following security issues:
The cgroup offline implementation in the Linux kernel through 4.8.11
mishandles certain drain operations, which allows local users to cause
a denial of service (system hang) by leveraging access to a container
environment for executing a crafted application, as demonstrated by
trinity (CVE-2016-9191).
arch/x86/kvm/vmx.c in the Linux kernel through 4.9 mismanages the #BP
and #OF exceptions, which allows guest OS users to cause a denial of
service (guest OS crash) by declining to handle an exception thrown by
an L2 guest (CVE-2016-9588).
The sg implementation in the Linux kernel through 4.9 does not properly
restrict write operations in situations where the KERNEL_DS option is set,
which allows local users to read or write to arbitrary kernel memory
locations or cause a denial of service (use-after-free) by leveraging
access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c
(CVE-2016-10088).
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel
through 4.9.8 does not properly validate meta block groups, which
allows physically proximate attackers to cause a denial of service
(out-of-bounds read and system crash) via a crafted ext4 image
(CVE-2016-10208).
The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in
the Linux kernel before 4.9.5 improperly emulates a 'MOV SS, NULL
selector' instruction, which allows guest OS users to cause a denial of
service (guest OS crash) or gain guest OS privileges via a crafted
application (CVE-2017-2583).
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local
users to obtain sensitive information from kernel memory or cause a
denial of service (use-after-free) via a crafted application that
leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt
(CVE-2017-2584).
drivers/hid/hid-corsair.c in the Linux kernel 4.9.x before 4.9.6
interacts incorrectly with the CONFIG_VMAP_STACK option, which allows
local users to cause a denial of service (system crash or memory
corruption) or possibly have unspecified other impact by leveraging
use of more than one virtual page for a DMA scatterlist (CVE-2017-5547).
drivers/net/ieee802154/atusb.c in the Linux kernel 4.9.x before 4.9.6
interacts incorrectly with the CONFIG_VMAP_STACK option, which allows
local users to cause a denial of service (system crash or memory
corruption) or possibly have unspecified other impact by leveraging
use of more than one virtual page for a DMA scatterlist (CVE-2017-5548).
The klsi_105_get_line_state function in drivers/usb/serial/kl5kusb105.c
in the Linux kernel before 4.9.5 places uninitialized heap-memory
contents into a log entry upon a failure to read the line status, which
allows local users to obtain sensitive information by reading the log
(CVE-2017-5549).
The simple_set_acl function in ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'kernel, kernel-userspace-headers, kmod-vboxadditions, kmod-virtualbox, kmod-xtables-addons' package(s) on Mageia 5.
Solution:
Please install the updated package(s).
CVSS Score:
7.5
CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
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