[El-errata] New Ksplice updates for UEKR5 4.14.35 on OL7 (ELBA-2020-5509)

[Errata Announcements for Oracle Linux]

Synopsis: ELBA-2020-5509 can now be patched using Ksplice
CVEs: CVE-2019-15807 CVE-2019-16233

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Bug Fix Advisory, ELBA-2020-5509.
More information about this errata can be found at
https://linux.oracle.com/errata/ELBA-2020-5509.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR5 4.14.35
on OL7 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-2019-15807: Denial-of-service when discovering expander in SAS Domain Transport Attributes fails.

A logic error when discovering expander in SAS Domain Transport
Attributes fails could lead to a kernel assert. A local attacker could
use this flaw to cause a denial-of-service.

Orabug: 30580686


* CVE-2019-16233: NULL pointer dereference when registering QLogic Fibre Channel driver.

A missing check when registering QLogic Fibre Channel driver fails could
lead to a NULL pointer dereference. A local attacker could use this flaw
to cause a denial-of-service.

Orabug: 30618783


* Memory leak when failing to add NFS requests to the I/O queue.

Missing free of resources when failing to add NFS requests to the I/O
queue could lead to a memory leak. A local attacker could use this flaw
to exhaust kernel memory and cause a denial-of-service.

Orabug: 30167701


* Out-of-bounds stack write in RDS socket when using RDMA.

When sending an RDMA message over RDS sockets, the stack buffer for
holding the control message is not properly validated as being large
enough to contain the data to be sent. This could potentially cause
other stack variables to be overwritten, causing corruption or a
denial-of-service.

Orabug: 29942349

SUPPORT

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