[El-errata] New updates available via Ksplice (ELSA-2013-0168)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2013-0168 can now be patched using Ksplice
CVEs: CVE-2012-1568 CVE-2012-4444

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2013-0168.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on EL 5 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

* Kernel panic in SMB extended attributes.

The kernel SMB server implementation does not correctly parse extended
attribute names in QUERY_ALL_EAS requests leading to an out-of-bounds read
and kernel crash.


* Kernel panic in ext3 indirect blocks.

The ext3 filesystem does not correctly handle corrupted indirect blocks
leading to a kernel panic when closing files.


* CVE-2012-1568: A predictable base address with shared libraries and ASLR.

Address space layout randomization (ASLR) is a security method which
involves randomly arranging the positions of key data areas,
usually including the base of the executable and position of libraries,
heap, and stack, in a process's address space.

When running a binary with a lot of shared libraries, predictable base
address is used for one of the loaded libraries. This flaw could be
used to bypass ASLR.


* CVE-2012-4444: Prohibit reassembling IPv6 fragments when some data 
overlaps.

Accepting overlapping fragmented IPv6 packets can lead to OS fingerprinting,
IDS/IPS insertion/evasion, firewall evasion.

SUPPORT

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