[Ksplice][EL7-Updates] New updates available via Ksplice (RHSA-2015:1534-01)

[Oracle Ksplice]

Synopsis: RHSA-2015:1534-01 can now be patched using Ksplice
CVEs: CVE-2014-9715 CVE-2015-2666 CVE-2015-2922 CVE-2015-3636

Systems running RHCK on Oracle Linux 7, Red Hat Enterprise Linux 7,
CentOS 7, and Scientific Linux 7 can now use Ksplice to patch against
the latest Red Hat Security Advisory, RHSA-2015:1534-01.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on OL 7, RHEL 7, CentOS
7, and Scientific Linux 7 install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* Kernel hang on UDP flood with wrong checksums.

A flaw in the UDP handling of wrong checksums could lead to a kernel hang
under a UDP flood attack.  A remote attacker could use this flaw to cause a
denial-of-service.


* CVE-2014-9715: Remote code execution in the netfilter connection tracking subsystem.

The netfilter connection tracking subsystem uses a too small type to store
the size and offset of an extension which could lead to memory corruptions.
A remote attacker could potentially use this flaw to cause a
denial-of-service or to gain code execution.


* CVE-2015-2666: Privilege escalation in the Intel early microcode loader.

A lack of bounds checking when writing to an on-stack array when parsing
the microcode headers in the Intel early loader could cause a kernel panic
or potentially leads to kernel execution.  A local, privileged user could
use this flaw to escalate their privileges.


* CVE-2015-3636: Memory corruption when unhashing IPv4 ping sockets.

The kernel IPv4 subsystem does not correctly handle unhashing a ping
socket which can trigger kernel memory corruption. A local user can use
this flaw to gain elevated privileges.


* CVE-2015-2922: Denial-of-service of IPv6 networks when handling router advertisements.

A flaw in the IPv6 stack allowed a remote attacker on the same network to
set the hop limit to a smaller value than the default one, preventing
devices on that network to send or receive.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.