[Ksplice][Debian 7.0 Updates] New updates available via Ksplice (DSA-2926-1)

[Oracle Ksplice]

Synopsis: DSA-2926-1 can now be patched using Ksplice
CVEs: CVE-2014-0196 CVE-2014-1737 CVE-2014-1738 CVE-2014-2851 CVE-2014-3122

Systems running Debian 7.0 Wheezy can now use Ksplice to patch against
the latest Debian Security Advisory, DSA-2926-1.

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-2014-1737, CVE-2014-1738: Local privilege escalation in floppy ioctl.

The floppy driver would leak internal memory addresses to userspace,
and would allow unprivileged userspace code to overwrite those
addresses, allowing for a local privilege escalation and gaining
of root.


* CVE-2014-2851: Integer overflow in IPv4 ping initialization.

Integer overflow in IPv4 ping_init_sock function could allow an attacker
to cause a denial-of-service or elevate privileges.


* CVE-2014-3122: Denial-of-service in non-linear memory mappings.

An assertion failure and kernel panic can be triggered when unmapping a
non-linear memory mapping.  This could be exploited by a local,
unprivileged user to crash the system.


* CVE-2014-0196: Pseudo TTY device write buffer handling race.

A race in how the pseudo ttyp (pty) device handled device writes when
two threads/processes wrote to the same pty, the buffer end could be
overwritten. An attacker could use this to cause a denial-of-service or
gain root privileges.

SUPPORT

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