[El-errata] New Ksplice updates for Oracle Enhanced RHCK 7 (ELSA-2020-3220)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2020-3220 can now be patched using Ksplice
CVEs: CVE-2019-19527 CVE-2020-10757 CVE-2020-12653 CVE-2020-12654

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-3220.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2020-3220.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Oracle Enhanced
RHCK 7 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-2020-12654: Denial-of-service when querying WMM status in mwifiex driver.

If an AP sends a malicious query to the station for WMM status, a buffer
overflow could occur. If an attacker can compromise the AP, this bug
could be triggered to cause a denial-of-service.


* CVE-2020-12653: Denial-of-service when scanning for APs in mwifiex driver.

Failing to validate user-defined length parameter could cause an
out-of-bound memory access while scanning for APs in mwifiex driver. An
attacker could exploit this bug to cause a denial-of-service.


* CVE-2019-19527: Denial-of-service in USB HID device open.

A race condition when opening a USB HID device could result in a
use-after-free and kernel crash.


* CVE-2020-10757: Flaw in DAX page mapping allows privilege escalation.

A flaw in the kernel handling for remapping huge pages mishandles pages
mapped for the DAX (direct userspace access) subsystem. A user with
access to DAX-mapped storage could exploit this to escalate their
privileges.

SUPPORT

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