[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2019-4823)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Wed Oct 23 07:54:19 PDT 2019

Synopsis: ELSA-2019-4823 can now be patched using Ksplice
CVEs: CVE-2017-14991 CVE-2017-7495

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2019-4823.
More information about this errata can be found at


We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 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


* CVE-2017-7495: Information leak when ext4 ordered data mode is used.

A logic error when flushing data to be written to an ext4 filesystem
could lead to information leak. A local attacker could use this flaw to
read any other files and escalate privileges.

Orabug: 30361860

* Kernel crash in Reliable Datagram Socket RDMA pool management.

A logic error when tracking items in an RDMA pool can result in a reference
count exceeding its maximum limit, leading to a kernel crash.

Orabug: 30397940

* 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: 26941755


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

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