[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2021-9043)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2021-9043 can now be patched using Ksplice
CVEs: CVE-2020-28915 CVE-2020-28974

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-9043.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-9043.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-2020-28915: Information leak due to out-of-bounds read in Framebuffer Console.

A flaw in the font handling code of the Framebuffer Console could lead to
an out-of-bounds read of kernel memory. A local attacker could use this
flaw to cause an information leak and the system's memory disclosure.

Orabug: 32176268


* CVE-2020-28974: Invalid memory access when manipulating framebuffer fonts.

A logic error when manipulating framebuffer console fonts may cause an
out-of-bounds memory read. A local attacker could use this flaw to read
privileged information or potentially cause a denial-of-service.

Orabug: 32187752

SUPPORT

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