[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2019-4855)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Tue Nov 26 00:15:33 PST 2019

Synopsis: ELSA-2019-4855 can now be patched using Ksplice
CVEs: CVE-2017-14991 CVE-2017-15102 CVE-2017-18509 CVE-2017-18551 CVE-2018-20169 CVE-2019-14284

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2019-4855.
More information about this errata can be found at


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


* CVE-2018-20169: Missing bound check when reading extra USB descriptors.

A failure to properly check the minimum and maximum size of an extra USB
descriptor in the USB sub-system could lead to reading or writing past
memory bounds.  An attacker with the ability to send specially crafted
extra descriptors from a USB device could use this flaw to escalate
privileges or cause a denial-of-service.

Orabug: 30057430

* CVE-2017-18551: Out-of-bounds access when reading data over I2C bus.

A missing check on user input when reading data over I2C bus could lead
to an out-of-bounds access. A local attacker could use this flaw to
cause a denial-of-service.

Orabug: 30468843

* CVE-2019-14284: Denial-of-service in floppy disk formatting.

A division by zero in the setup_format_params function for the floppy
disk driver could result in a kernel crash.  A local user with access to
the floppy disk device could use this flaw to crash the system.

Orabug: 30447845

* CVE-2017-15102: NULL pointer dereference when probing Lego Mindstorms infrared device.

A race condition when probing Lego Mindstorms infrared device can trigger
a NULL pointer dereference and cause a local denial of service.

Orabug: 30412152

* CVE-2017-14991: Information leak in SCSI Generic Support driver.

Failing to initialize buffer when performing ioctl call for /dev/sg0
results in stale kernel data leaked into userspace. This allows local
users to obtain sensitive information about kernel heap memory.

Orabug: 30393903

* CVE-2017-18509: Memory corruption in IPv6 via setting socket options.

A missing check in the IPv6 ip6mr code could allow a privileged attacker
to control a pointer in kernel land, potentially causing a general
protection fault or being able to execute arbitrary code.

Orabug: 30183226


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

More information about the El-errata mailing list