[Ksplice][Fedora-16-updates] New updates available via Ksplice (FEDORA-2012-3030)

[Samson Yeung]

Synopsis: FEDORA-2012-3030 can now be patched using Ksplice
CVEs: CVE-2012-1090

Systems running Fedora 16 can now use Ksplice to patch against the
latest Fedora security update, FEDORA-2012-3030.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Fedora 16 install
these updates.  You can install these updates by running:

# /usr/sbin/uptrack-upgrade -y

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 additional action.


DESCRIPTION

* CVE-2012-1090: Denial of service in the CIFS filesystem reference 
counting.

Under certain circumstances, the CIFS filesystem would open files on
lookup. If the file was determined later to be a FIFO or any other
special file the file handle would be leaked, leading to reference
counting mismatch and a kernel OOPS on unmount.

An unprivileged local user could use this flaw to crash the system.


* Fix oops caused by more USB3 than USB2 ports.

If you had more USB 2.0 ports and USB 3.0 ports, xhci could cause a
kernel oops.


* Use-after-free in epoll.

Insufficient cleanup in the epoll driver could use previously released
memory which an attacker could use to corrupt kernel memory.

SUPPORT

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