[Ksplice][EL8-Updates] New Ksplice updates for OL 8 and RHEL 8 (ELSA-2021-4056)

[Oracle Ksplice]

Synopsis: ELSA-2021-4056 can now be patched using Ksplice
CVEs: CVE-2020-36385 CVE-2021-0512

Systems running RHCK on Oracle Linux 8 and Red Hat Enterprise Linux 8
can now use Ksplice to patch against the latest Red Hat kernel update,
ELSA-2021-4056.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-4056.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 8 and RHEL 8
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-2021-0512: Out-of-bounds memory accesses when accessing HID devices array fields.

Out-of-bounds reads and writes in HID driver during HID device
registration could lead to information disclosure and corruption of
internal data structures. A local attacker could use this flaw
to cause a denial-of-service or as an aid in another type of
attack.


* CVE-2020-36385: Use-after-free in RDMA communication manager due to a race condition.

A race condition could happen in RDMA communication manager leading
to a use-after-free when closing UCMA file. A local user could use
this flaw for a denial-of-service or code execution.

SUPPORT

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