[Ksplice][Fedora-18-updates] New updates available via Ksplice (FEDORA-2013-6728)

[Vegard Nossum]

Synopsis: FEDORA-2013-6728 can now be patched using Ksplice
CVEs: CVE-2013-1959

Systems running Fedora 18 can now use Ksplice to patch against the
latest Fedora kernel update, FEDORA-2013-6728.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Fedora 18 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

* 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.


* Buffer overflow in HFS+ filesystem.

An implicit truncation of an inode's size could lead to a buffer overflow
that is exploitable by local users with write access to an HFS+ filesystem.


* 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-2013-1959: Incorrect privilege checks in /proc/<pid>/uid_map.

Incorrect privilege checks in /proc/<pid>/uid_map could allow a local
user to escalate privileges.


* Kernel crash in performance monitoring system.

Due to an incorrect bit mask, a user could write to a reserved CPU bit
and crash the kernel.

SUPPORT

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