[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2019-4533)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2019-4533 can now be patched using Ksplice
CVEs: CVE-2018-1094 CVE-2018-14609

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2019-4533.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR2 2.6.39 on
OL5 and OL6 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-2018-14609: NULL pointer dereference in BTRFS relocation cleanup.

A missing NULL pointer check could result in a kernel crash when
mounting a corrupted filesystem.  A user with the ability to mount
filesystems could use this flaw to crash the system with a maliciously
crafted image.

Orabug: 29301108


* CVE-2018-1094: Denial-of-service in overlapping EXT4 filesystems with data and superblocks.

A malformed EXT4 filesystem with overlapping data and superblocks could
result in triggering kernel assertions and crashing the system.  A local
user with the ability to mount filesystems could use this flaw to trigger a
denial-of-service.

Orabug: 28220576

SUPPORT

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