[Ksplice][Virtuozzo 4 Updates] New updates available via Ksplice (2.6.18-371.3.1.el5.028stab110.1)

[Sasha Levin]

Synopsis: 2.6.18-371.3.1.el5.028stab110.1 can now be patched using Ksplice
CVEs: CVE-2012-3511 CVE-2013-0343 CVE-2013-4299 CVE-2013-4345

Systems running Virtuozzo 4 or the OpenVZ RHEL 5 kernel can now use
Ksplice to patch against the latest Parallels Virtuozzo Containers
kernel security update, 2.6.18-371.3.1.el5.028stab110.1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Virtuozzo 4 or
OpenVZ on RHEL 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

* CVE-2012-3511: Use-after-free due to race condition in madvise.

A race condition between munmap and madvise can cause a use-after-free
in the memory management system.


* CVE-2013-4299: Information leak in device mapper persistent snapshots.

An information leak flaw was found in the way Linux kernel's device
mapper subsystem, under certain conditions, interpreted data written to
snapshot block devices. An attacker could use this flaw to read data
from disk blocks in free space, which are normally inaccessible.


* CVE-2013-4345: Off-by-one in the ANSI Crypto RNG.

An off-by-one flaw was found in the way the ANSI CPRNG implementation in
the Linux kernel processed non-block size aligned requests. This could lead
to random numbers being generated with less bits of entropy than expected
when ANSI CPRNG was used.


* CVE-2013-0343: Denial of service in IPv6 privacy extensions.

A malicious remote user can disable IPv6 privacy extensions by flooding the host
with malicious temporary addresses.


* Incorrect handling of SCSI scatter-gather list mapping failures.

Due to an incorrect test condition in the mpt2sas driver, the driver was
unable to catch failures to map a SCSI scatter-gather list. The test
condition has been corrected so that the mpt2sas driver now handles SCSI
scatter-gather mapping failures as expected.

SUPPORT

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