[El-errata] New updates available via Ksplice (ELSA-2014-3106)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2014-3106 can now be patched using Ksplice
CVEs: CVE-2014-5471 CVE-2014-5472 CVE-2014-9090 CVE-2014-9322

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2014-3106.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on EL 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-2014-9090, CVE-2014-9322: Privilege escalation in double-fault handling on bad stack segment.

A flaw when handling double faults associated with the stack segment
register could lead to a kernel panic or potentially a privilege
escalation.  A local, unprivileged user could use this flaw via the
modify_ldt() system call to escalate privileges or cause a
denial-of-service.


* CVE-2014-5471, CVE-2014-5472: Privilege escalation in ISO filesystem implementation.

The parse_rock_ridge_inode_internal() function in the ISO filesystem driver
does not correctly check relocated directories when processing Rock Ridge
child link tags. An attacker with physical access to the system could use a
specially crafted ISO image to cause a denial of service or, potentially,
escalate their privileges.

SUPPORT

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