| Description: | Summary:
Check the version of kernel
Vulnerability Insight:
The kernel packages contain the Linux
kernel, the core of any Linux operating system.
Security Fix(es):
* A security flaw was found in the Linux kernel in the mark_source_chains()
function in 'net/ipv4/netfilter/ip_tables.c'. It is possible for a
user-supplied 'ipt_entry' structure to have a large 'next_offset' field.
This field is not bounds checked prior to writing to a counter value at the
supplied offset. (CVE-2016-3134, Important)
* A flaw was discovered in processing setsockopt for 32 bit processes on 64
bit systems. This flaw will allow attackers to alter arbitrary kernel
memory when unloading a kernel module. This action is usually restricted to
root-privileged users but can also be leveraged if the kernel is compiled
with CONFIG_USER_NS and CONFIG_NET_NS and the user is granted elevated
privileges. (CVE-2016-4997, Important)
* An out-of-bounds heap memory access leading to a Denial of Service, heap
disclosure, or further impact was found in setsockopt(). The function call
is normally restricted to root, however some processes with cap_sys_admin
may also be able to trigger this flaw in privileged container environments.
(CVE-2016-4998, Moderate)
Bug Fix(es):
* In some cases, running the ipmitool command caused a kernel panic due to
a race condition in the ipmi message handler. This update fixes the race
condition, and the kernel panic no longer occurs in the described scenario.
(BZ#1353947)
* Previously, running I/O-intensive operations in some cases caused the
system to terminate unexpectedly after a null pointer dereference in the
kernel. With this update, a set of patches has been applied to the 3w-9xxx
and 3w-sas drivers that fix this bug. As a result, the system no longer
crashes in the described scenario. (BZ#1362040)
* Previously, the Stream Control Transmission Protocol (SCTP) sockets did
not inherit the SELinux labels properly. As a consequence, the sockets were
labeled with the unlabeled_t SELinux type which caused SCTP connections to
fail. The underlying source code has been modified, and SCTP connections
now works as expected. (BZ#1354302)
* Previously, the bnx2x driver waited for transmission completions when
recovering from a parity event, which substantially increased the recovery
time. With this update, bnx2x does not wait for transmission completion in
the described circumstances. As a result, the recovery of bnx2x after a
parity event now takes less time. (BZ#1351972)
Enhancement(s):
* With this update, the audit subsystem enables filtering of processes by
name besides filtering by PID. Users can now audit by executable name (with
the '-F exe= path-to-executabl ...
Description truncated, please see the referenced URL(s) for more information.
Affected Software/OS:
kernel on CentOS 7
Solution:
Please install the updated packages.
CVSS Score:
7.2
CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
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