[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2021-9577)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Tue Dec 7 20:40:30 UTC 2021

Synopsis: ELSA-2021-9577 can now be patched using Ksplice
CVEs: CVE-2021-3732

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-9577.
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-2021-3732: Information disclosure in OverlayFS when mounting a 

A logic flaw in mounting functionality of OverlayFS subsystem could
allow an unprivileged local user with permissions to mount a filesystem
to access hidden files that should not be accessible in the original mount.
An unprivileged local attacker could use this flaw for information

Orabug: 33560431


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

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