CentOS Linux kernel 2.6.32-431.17.1 has just been released.
Update type(s): security and bug fix
* A flaw was found in the way the Linux kernel’s netfilter connection
tracking implementation for Datagram Congestion Control Protocol (DCCP)
packets used the skb_header_pointer() function. A remote attacker could use
this flaw to send a specially crafted DCCP packet to crash the system or,
potentially, escalate their privileges on the system. (CVE-2014-2523,
* A flaw was found in the way the Linux kernel’s Adaptec RAID controller
(aacraid) checked permissions of compat IOCTLs. A local attacker could use
this flaw to bypass intended security restrictions. (CVE-2013-6383,
* A flaw was found in the way the handle_rx() function handled large
network packets when mergeable buffers were disabled. A privileged guest
user could use this flaw to crash the host or corrupt QEMU process memory
on the host, which could potentially result in arbitrary code execution on
the host with the privileges of the QEMU process. (CVE-2014-0077, Moderate)
Full details can be found here.
Updating the Kernel
You can either initiate a full yum update:
yum update "kernel-*"
As this update has just been released, your preferred CentOS yum mirror may not have the update yet. In this case. you may need to wait a few hours for the update to become available. Cached repo data can also prevent new updates from being found. To clear your yum cache, run:
yum clean all