[Ksplice][Debian 7.0 Updates] New updates available via Ksplice (DSA-2669-1)

[Jamie Iles]

Synopsis: DSA-2669-1 can now be patched using Ksplice
CVEs: CVE-2013-0160 CVE-2013-1979 CVE-2013-2015 CVE-2013-2094 CVE-2013-3076 CVE-2013-3222 CVE-2013-3223 CVE-2013-3224 CVE-2013-3225 CVE-2013-3227 CVE-2013-3228 CVE-2013-3229 CVE-2013-3231 CVE-2013-3234 CVE-2013-3235 CVE-2013-3301

Systems running Debian 7.0 Wheezy can now use Ksplice to patch against
the latest Debian Security Advisory, DSA-2669-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Debian 7.0 Wheezy
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-2013-2094: Out-of-bounds memory write in perf_event_open() system call.

Due to implicit integer truncation, an unprivileged user can corrupt
kernel memory by passing an invalid value to the perf_event_open()
system call, possibly leading to denial of service or privilege
escalation.


* CVE-2013-1979: Privilege escalation with UNIX socket credentials.

Incorrect passing of credentials over a UNIX domain socket could allow
an unprivileged user to use a setuid binary to escalate privileges to
superuser level.


* CVE-2013-0160: Information disclosure by keystroke timing on a ptmx device.

It is possible to calculate the length of a user's password using a timing attack
on the ptmx device.


* CVE-2013-2015: Denial-of-service in no-journal mode ext4 filesystems.

A user with physical access to a machine could use a carefully
constructed filesystem to hang the system.


* CVE-2013-3076: Kernel stack information leak in userspace crypto API.

missing initialization could allow a local user to leak kernel stack
information when receiving results.


* CVE-2013-3222: Kernel stack information leak in ATM sockets.

Missing data clearing operations could allow an unprivileged user to
leak kernel stack memory to userspace.


* CVE-2013-3223: Kernel stack information leak in amateur radio drivers.

Missing initialization could allow a local user to leak kernel stack
information when receiving messages.


* CVE-2013-3224: Kernel stack information leak in Bluetooth sockets.

Receiving messages from a bluetooth socket whilst the socket is
simultaneously being shut down could leak kernel stack bytes to
userspace allowing a local user to gain information about the running
kernel.


* CVE-2013-3225: Kernel stack information leak in Bluetooth rfcomm.

Missing data clearing operations could allow a local user to leak kernel
stack memory to userspace.


* CVE-2013-3227: Kernel stack leak when receiving CAIF packets.

A part of the stack will leak when an attempt to receive packets from a
CAIF socket that doesn't have the name field set allowing kernel stack
memory to leak to userspace.


* CVE-2013-3228: Kernel stack information leak in IRDA sockets.

Missing initialization could allow a local user to leak kernel stack
information when receiving messages.


* CVE-2013-3229: Kernel stack information leak in IUCV sockets.

Missing initialization could allow a local user to leak kernel stack
information when receiving messages from an iUCV socket.


* CVE-2013-3231: Kernel stack information leak in LLC sockets.

Missing initialization could allow a local user to leak kernel stack
information when receiving messages.


* CVE-2013-3234: Kernel stack information leak in ROSE protocol.

Missing initialization could allow a local user to leak kernel stack
information when receiving from a ROSE socket.


* CVE-2013-3235: Kernel stack information leak in TIPC protocl.

Missing initialization could allow a local user to leak stack
information when receiving messages on a Transparent Inter Process
Communication (TIPC) socket.


* CVE-2013-3301: NULL pointer dereference in tracing sysfs files.

The tracing sysfs files did not correctly allow seeking on a file opened
for writing, allowing a priviliged user to crash the system.


* Information leak in tkill() and tgkill() system calls.

Due to a lack of proper initialisation, the tkill() and tgkill() system
calls may leak data from the kernel stack to an unprivileged local user.

SUPPORT

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