[Ksplice][Ubuntu-11.10-Updates] New updates available via Ksplice (3.0.0-25.41)

[Phil Turnbull]

Synopsis: 3.0.0-25.41 can now be patched using Ksplice
CVEs: CVE-2012-3412 CVE-2012-3430

Systems running Ubuntu 11.10 Oneiric can now use Ksplice to patch
against the latest Ubuntu kernel update, 3.0.0-25.41.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Ubuntu 11.10 Oneiric
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-2012-3430: kernel information leak in RDS sockets.

Calling recvfrom() on an RDS socket could result in leaking the contents
of kernel stack memory to userspace.


* Kernel panic on SUNRPC initialization failure.

A kernel panic may occur due to a failed SUNRPC initialization due to 
invalid
return values returned by the initialization function.


* Use-after-free in freed page LRU handling.

A race condition between MMU notifier release and page unmapping may cause
the memory manager to access a page which was already freed.


* Use-after-free in 802.11 mesh networking.

A use-after-free condition can be triggered when leaving an 802.11
mesh network.


* Denial of service in hugetlbfs shared page table teardown.

A race condition in hugetlbfs shared page table teardown may cause a 
corruption
of the pagetables, leading to a kernel BUG.


* NULL pointer dereference in Ralink rt2x00 wireless network driver.

Due to incorrect initialization of a data structure, a NULL pointer
dereference may occur on device wakeup.


* CVE-2012-3412: Remote denial of service through TCP MSS option in SFC NIC.

A malicious remote user may trigger a denial-of-service in hosts using 
the SFC
NIC by reducing the size of the TCP MSS and causing the victim to run out
of resources while processing the packets.


* Memory corruption in FUSE handling of vectored responses.

An incorrect check of the size of the response vector could lead to an
overflow and corruption of memory after the vector.


* NULL pointer dereference handling scsi over IB command responses.

A NULL dereference will occur if a reply to a previous request would happen
during or after an abort command.

SUPPORT

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