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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2011:0163
Summary:Redhat Security Advisory RHSA-2011:0163
The remote host is missing updates announced in
advisory RHSA-2011:0163.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issue:

* A flaw was found in the sctp_icmp_proto_unreachable() function in the
Linux kernel's Stream Control Transmission Protocol (SCTP) implementation.
A remote attacker could use this flaw to cause a denial of service.
(CVE-2010-4526, Important)

This update also fixes the following bugs:

* Due to an off-by-one error, gfs2_grow failed to take the very last rgrp
parameter into account when adding up the new free space. With this update,
the GFS2 kernel properly counts all the new resource groups and fixes the
statfs file correctly. (BZ#666792)

* Prior to this update, a multi-threaded application, which invoked
popen(3) internally, could cause a thread stall by FILE lock corruption.
The application program waited for a FILE lock in glibc, but the lock
seemed to be corrupted, which was caused by a race condition in the COW
(Copy On Write) logic. With this update, the race condition was corrected
and FILE lock corruption no longer occurs. (BZ#667050)

* If an error occurred during I/O, the SCSI driver reset the megaraid_sas
controller to restore it to normal state. However, on Red Hat Enterprise
Linux 5, the waiting time to allow a full reset completion for the
megaraid_sas controller was too short. The driver incorrectly recognized
the controller as stalled, and, as a result, the system stalled as well.
With this update, more time is given to the controller to properly restart,
thus, the controller operates as expected after being reset. (BZ#667141)

Users should upgrade to these updated packages, which contain backported
patches to correct these issues. The system must be rebooted for this
update to take effect.

Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date


Risk factor : High

CVSS Score:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2010-4526
Bugtraq: 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console (Google Search)
BugTraq ID: 45661
XForce ISS Database: kernel-icmp-message-dos(64616)
CopyrightCopyright (c) 2011 E-Soft Inc. http://www.securityspace.com

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