[Ksplice][Virtuozzo 4.7 Updates] New updates available via Ksplice (CU-2.6.32-042stab059.7)
Samson Yeung
samson.yeung at oracle.com
Fri Jul 27 14:16:44 PDT 2012
Synopsis: CU-2.6.32-042stab059.7 can now be patched using Ksplice
CVEs: CVE-2011-4131 CVE-2012-2744 CVE-2012-2745
Systems running Virtuozzo 4.7 or the OpenVZ RHEL 6 kernel can now use
Ksplice to patch against the latest Parallels Virtuozzo Containers 4.7
kernel security update, CU-2.6.32-042stab059.7.
INSTALLING THE UPDATES
We recommend that all users of Ksplice Uptrack on Virtuozzo 4.7 or
OpenVZ on RHEL 6 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-2011-4131: Kernel crash in NFSv4.
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-2012-2745: Denial-of-service in kernel key management.
A potential double-free of the replacement session keyring on fork()
could result in a denial-of-service by a local, unprivileged user.
* CVE-2012-2744: Remote denial-of-service in IPv6 connection tracking.
A flaw in the IPv6 connection tracking netfilter module could allow a
remote attacker to trigger a NULL pointer dereference and
denial-of-service with specially crafted IPv6 packets.
* Kernel crash on live migration.
Incorrect ordering between restoring registers and task flags could
result in a kernel crash when migrating between nodes.
SUPPORT
Ksplice support is available at ksplice-support_ww at oracle.com.
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