[Ksplice][Ubuntu-12.10-Updates] New updates available via Ksplice (USN-1579-1)

[Christine Spang]

Synopsis: USN-1579-1 can now be patched using Ksplice
CVEs: CVE-2012-3412 CVE-2012-3430

Systems running Ubuntu 12.04 Precise can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-1579-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Ubuntu 12.04 Precise
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

* 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.


* NULL pointer dereference in SFB packet scheduling.

A missing NULL pointer check in options parsing could result in a
NULL pointer dereference and system crash.


* 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.


* Use-after-free in CAIF module unloading.

Incorrect ordering of freeing internal data structures may cause a
use-after-free when removing the CAIF module.


* 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 stack information leak in tun ioctls.

Incorrect initialisation of ioctl structures could result in leaking
stack bytes to a userspace process.


* Use-after-free in 802.11 mesh networking.

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


* NULL pointer dereference in CIPSO socket options.

Adding a CIPSO option to a socket could result in a NULL pointer
dereference and kernel crash under specific conditions.


* NULL pointer dereference in caif tty driver.

A missing NULL pointer check could result in a kernel crash when opening
the tty device.


* Use-after-free in sctp.

In some circumstances, a sctp association could be used after it was
freed, leading to memory corruption and possibly a kernel oops.


* Kernel crash in kaweth USB Ethernet driver.

Invalid memory allocation could cause the kernel to sleep in an atomic
state resulting in a kernel crash.

SUPPORT

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