| Description: | 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.
* A flaw was found in the way the Linux kernel's file system implementation
handled rename operations in which the source was inside and the
destination was outside of a bind mount. A privileged user inside a
container could use this flaw to escape the bind mount and, potentially,
escalate their privileges on the system. (CVE-2015-2925, Important)
* A race condition flaw was found in the way the Linux kernel's IPC
subsystem initialized certain fields in an IPC object structure that were
later used for permission checking before inserting the object into a
globally visible list. A local, unprivileged user could potentially use
this flaw to elevate their privileges on the system. (CVE-2015-7613,
Important)
* It was found that reporting emulation failures to user space could lead
to either a local (CVE-2014-7842) or a L2- L1 (CVE-2010-5313) denial of
service. In the case of a local denial of service, an attacker must have
access to the MMIO area or be able to access an I/O port. (CVE-2010-5313,
CVE-2014-7842, Moderate)
* A flaw was found in the way the Linux kernel's KVM subsystem handled
non-canonical addresses when emulating instructions that change the RIP
(for example, branches or calls). A guest user with access to an I/O or
MMIO region could use this flaw to crash the guest. (CVE-2014-3647,
Moderate)
* It was found that the Linux kernel memory resource controller's (memcg)
handling of OOM (out of memory) conditions could lead to deadlocks.
An attacker could use this flaw to lock up the system. (CVE-2014-8171,
Moderate)
* A race condition flaw was found between the chown and execve system
calls. A local, unprivileged user could potentially use this flaw to
escalate their privileges on the system. (CVE-2015-3339, Moderate)
* A flaw was discovered in the way the Linux kernel's TTY subsystem handled
the tty shutdown phase. A local, unprivileged user could use this flaw to
cause a denial of service on the system. (CVE-2015-4170, Moderate)
* A NULL pointer dereference flaw was found in the SCTP implementation.
A local user could use this flaw to cause a denial of service on the system
by triggering a kernel panic when creating multiple sockets in parallel
while the system did not have the SCTP module loaded. (CVE-2015-5283,
Moderate)
* A flaw was found in the way the Linux kernel's perf subsystem retrieved
userlevel stack traces on PowerPC systems. A local, unprivileged user could
use this flaw to cause a denial of service on the system. (CVE-2015-6526,
Moderate)
* A flaw was ...
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:
6.9
CVSS Vector:
AV:L/AC:M/Au:N/C:C/I:C/A:C
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