[El-errata] New updates available via Ksplice (ELSA-2012-2047)

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Fri Dec 21 11:07:15 PST 2012

Synopsis: ELSA-2012-2047 can now be patched using Ksplice
CVEs: CVE-2012-2375 CVE-2012-4565 CVE-2012-5517

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2012-2047.


We recommend that all users of Ksplice Uptrack on EL 5 install these

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-2012-2375: Kernel crash in NFSv4.

The upstream fix for CVE-2010-4131 was incomplete and still exploitable
under certain circumstances.  nfs4_getfacl decoding causes a kernel
crash when a server returns more than 2 GETATTR bitmap words in response
to the FATTR4_ACL attribute request.

* CVE-2012-5517: NULL pointer dereference in memory hotplug.

A NULL pointer dereference can occur when a new node's hot-added
memory is propagated to other nodes zonelists. An unprivileged local
user can use this flaw to crash the system.

* CVE-2012-4565: Divide by zero in TCP congestion control Algorithm.

The TCP Illinois congestion control algorithm does not correctly handle a
zero number of RTTs when reading TCP stats, leading to a divide-by-zero
and kernel panic. A remote attacker could potentially use this flaw to
cause a remote denial of service.


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

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