| Beschreibung: | Summary:
The remote host is missing an update for the 'kernel'
package(s) announced via the referenced advisory.
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
...
Description truncated, please see the referenced URL(s) for more information.
Affected Software/OS:
kernel on Red Hat Enterprise Linux Server (v. 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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