[El-errata] New Ksplice updates for UEKR3 3.8.13 on OL6 and OL7 (ELSA-2019-4871)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2019-4871 can now be patched using Ksplice
CVEs: CVE-2019-1125 CVE-2019-15213 CVE-2019-15215 CVE-2019-15217 CVE-2019-15219 CVE-2019-16994 CVE-2019-17053 CVE-2019-17055

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2019-4871.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2019-4871.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR3 3.8.13 on
OL6 and 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-2019-15219: Denial-of-service in USB 2.0 SVGA dongle driver when using a malicious USB device.

A logic error in USB 2.0 SVGA dongle driver could lead to a NULL pointer
dereference. A local attacker could use this flaw and a malicious USB
device to cause a denial-of-service.

Orabug: 30548566


* CVE-2019-15217: NULL pointer deference when using USB ZR364XX Camera driver.

A missing check when querying capabilities of USB ZR364XX Camera device
from user space could lead to a NULL pointer dereference. A local
attacker could use this flaw to cause a denial-of-service.

Orabug: 30532775


* CVE-2019-15215: Denial-of-service when disconnecting CPiA2 USB camera.

A use-after-free vulnerability in the V4L2 interface for CPiA2 USB
camera allows a malicious USB device to crash the kernel. An attacker
could exploit this to cause a denial-of-service.

Orabug: 30511742


* CVE-2019-15213: Denial-of-service when removing a USB DVB device.

A use-after-free when releasing a USB DVB device could lead to a kernel
crash. An attacker could exploit this to cause a denial-of-service by
plugging in a malicious USB device.

Orabug: 30490492


* CVE-2019-16994: Denial-of-service in IPv6-in-IPv4 tunnel registration.

A missing free of resources when registering an IPv6-in-IPv4 tunnel fails
could lead to a memory leak. A local attacker could use this flaw to
exhaust kernel memory and cause a denial-of-service.

Orabug: 30445307


* CVE-2019-17055: Permission bypass when creating a Modular ISDN socket.

A missing check on user capabilities when creating a Modular ISDN socket
could lead to a permission bypass.

Orabug: 30445159


* CVE-2019-17053: Permission bypass when creating a IEEE 802.15.4 socket.

A missing check on user capabilities when creating a IEEE 802.15.4
socket could lead to a permission bypass.

Orabug: 30444947


* Improved fix to CVE-2019-1125: Information leak in kernel entry code when swapping GS.

The original CVE-2019-1125 did not correctly handle late microcode
updates resulting in a missing mitigation if the microcode was loaded
after boot time.

Orabug: 30379626

SUPPORT

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