RHSA-2014:1083: Important: kernel-rt security and bug fix update

First published: Wed Aug 20 2014(Updated: )

The kernel-rt packages contain the Linux kernel, the core of any Linux<br>operating system.<br><li> A NULL pointer dereference flaw was found in the way the Linux kernel's</li> Stream Control Transmission Protocol (SCTP) implementation handled<br>simultaneous connections between the same hosts. A remote attacker could<br>use this flaw to crash the system. (CVE-2014-5077, Important)<br><li> Multiple use-after-free flaws and an integer overflow flaw were found in</li> the way the Linux kernel's Advanced Linux Sound Architecture (ALSA)<br>implementation handled user controls. A local, privileged user could use<br>either of these flaws to crash the system. (CVE-2014-4653, CVE-2014-4654,<br>CVE-2014-4655, CVE-2014-4656, Moderate)<br><li> An information leak flaw was found in the way the Linux kernel's Advanced</li> Linux Sound Architecture (ALSA) implementation handled access of the user<br>control's state. A local, privileged user could use this flaw to leak<br>kernel memory to user space. (CVE-2014-4652, Low)<br>This update also fixes the following bug:<br><li> Prior to this update, the netconsole module was unavailable on MRG</li> Realtime kernels due to locking issues that disabled it. These locking<br>issues have been corrected, allowing the netconsole module to be re-enabled<br>and functional on Realtime kernels. (BZ#1088923)<br>Users are advised to upgrade to these updated packages, which upgrade the<br>kernel-rt kernel to version kernel-rt-3.10.33-rt32.45 and correct these<br>issues. The system must be rebooted for this update to take effect.<br>

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