[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2020-5936)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2020-5936 can now be patched using Ksplice CVEs:
CVE-2014-4508 CVE-2017-8925

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-5936.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2020-5936.html

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-2017-8925: Memory leak when opening an Omninet serial driver.

An extra reference on the TTY was taken in the Omninet serial driver on
open, leading to a memory leak.  A local, unprivileged user could use this
flaw to exhaust the memory on the system and cause a denial-of-service.

Orabug: 30484765


* CVE-2014-4508: Denial-of-service in syscall audit code when using wrong syscall number.

A flaw in the error path of the entry point of a syscall leads to a kernel
panic if syscall auditing is enabled and the syscall number is larger than
the number of syscalls. A local, unprivileged user could use this flaw to
cause a denial-of-service.

Orabug: 30783266

SUPPORT

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