This would take place as far as possible during the off-peak hours. A reboot is required to complete the upgrade. The downtime should not exceed 30 minutes and it will be minimize as much as possible.
This update is scheduled as follows:
Date: 14 February 2015 (Saturday) to 16 February 2015 (Monday)
Time: Between 2AM and 8AM EST#
Details of CentOS 5 security update
* A flaw was found in the way the Linux kernel's splice() system call validated its parameters. On certain file systems, a local, unprivileged
user could use this flaw to write past the maximum file size, and thus crash the system. (CVE-2014-7822, Moderate)
Bug Fixes:
* Previously, hot-unplugging of a virtio-blk device could in some cases lead to a kernel panic, for example during in-flight I/O requests.
This update fixes race condition in the hot-unplug code in the virtio_blk.ko module. As a result, hot unplugging of the virtio-blk device
no longer causes the guest kernel oops when there are in-flight I/O requests. (BZ#1006536)
* Before this update, due to a bug in the error-handling path, a corrupted metadata block could be used as a valid block. With this update, the error handling path has been fixed and more checks have been added to verify the metadata block. Now, when a corrupted metadata block is encountered, it is properly marked as corrupted and handled accordingly. (BZ#1034403)
* Previously, an incorrectly initialized variable resulted in a random value being stored in the variable that holds the number of default ACLs,
and is sent in the SET_PATH_INFO data structure. Consequently, the setfacl command could, under certain circumstances, fail with an "Invalid argument" error. With this update, the variable is correctly initialized to zero, thus fixing the bug. (BZ#1105625)
Details of CentOS 6 security update
* A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change (ASCONF). A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system. (CVE-2014-7841, Important)
* An integer overflow flaw was found in the way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled user controls. A local, privileged user could use this flaw to crash the system. (CVE-2014-4656, Moderate)1161421)is initialized at the right time. (BZ#1149580)
Torsdag, februar 12, 2015
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