[Ksplice][Virtuozzo 4.7 Updates] New Ksplice updates for Virtuozzo 4.7 or OpenVZ on RHEL 6 (2.6.32-042stab128.2)

[Oracle Ksplice]

Synopsis: 2.6.32-042stab128.2 can now be patched using Ksplice
CVEs: CVE-2017-18017 CVE-2018-5332 CVE-2018-5333

Systems running Virtuozzo 4.7 or the OpenVZ RHEL 6 kernel can now use
Ksplice to patch against the latest Parallels Virtuozzo Containers 4.7
kernel security update, 2.6.32-042stab128.2.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Virtuozzo 4.7
or OpenVZ on RHEL 6 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

* CVE-2017-18017: Use-after-free when using TCPMSS Netfilter.

A missing check in the netfilter TCP MSS code could lead to a
use-after-free condition.  A remote attacker could exploit this
to cause a denial of service.


* CVE-2018-5332: Out-of-bounds write when sending messages through Reliable Datagram Sockets.

A missing check when sending messages through Reliable Datagram Sockets
could lead to an out-of-bounds write in the heap. A local attacker could
use this flaw to cause a denial-of-service.


* CVE-2018-5333: NULL pointer dereference when freeing resources in Reliable Datagram Sockets driver.

A missing check when freeing resources in Reliable Datagram Sockets
driver could lead to a NULL pointer dereference. A local attacker could
use this flaw to cause a denial-of-service.

SUPPORT

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