[El-errata] New updates available via Ksplice (ELSA-2015-3048)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2015-3048 can now be patched using Ksplice
CVEs: CVE-2015-2922 CVE-2015-3636

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2015-3048.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on EL 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

* 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.