Please Install the Updated Packages.

The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * A NULL pointer dereference flaw was found in the igb driver in the Linux kernel. If both the Single Root I/O Virtualization (SR-IOV) feature and promiscuous mode were enabled on an interface using igb, it could result in a denial of service when a tagged VLAN packet is received on that interface. (CVE-2010-4263, Important) * A missing sanity check was found in vbd_create() in the Xen hypervisor implementation. As CD-ROM drives are not supported by the blkback back-end driver, attempting to use a virtual CD-ROM drive with blkback could trigger a denial of service (crash) on the host system running the Xen hypervisor. (CVE-2010-4238, Moderate) * A flaw was found in the Linux kernel execve() system call implementation. A local, unprivileged user could cause large amounts of memory to be allocated but not visible to the OOM (Out of Memory) killer, triggering a denial of service. (CVE-2010-4243, Moderate) * A flaw was found in fixup_page_fault() in the Xen hypervisor implementation. If a 64-bit para-virtualized guest accessed a certain area of memory, it could cause a denial of service on the host system running the Xen hypervisor. (CVE-2010-4255, Moderate) * A missing initialization flaw was found in the bfa driver used by Brocade Fibre Channel Host Bus Adapters. A local, unprivileged user could use this flaw to cause a denial of service by reading a file in the &quot /sys/class/fc_host/host#/statistics/&quot directory. (CVE-2010-4343, Moderate) * Missing initialization flaws in the Linux kernel could lead to information leaks. (CVE-2010-3296, CVE-2010-3877, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, CVE-2010-4158, Low) Red Hat would like to thank Kosuke Tatsukawa for reporting CVE-2010-4263 Vladymyr Denysov for reporting CVE-2010-4238 Brad Spengler for reporting CVE-2010-4243 Dan Rosenberg for reporting CVE-2010-3296, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, and CVE-2010-4158 Vasiliy Kulikov for reporting CVE-2010-3877 and Kees Cook for reporting CVE-2010-4072. These updated packages also include several hundred bug fixes for and enhancements to the Linux kernel. Space precludes documenting each of these changes in this advisory and users are directed to the Red Hat Enterprise Linux 5.6 Release Notes for information on the most significant of these ... Description truncated, for more information please check the Reference URL

Red Hat Enterprise Linux 5.6 kernel on Red Hat Enterprise Linux (v. 5 server)

• https://www.redhat.com/archives/rhsa-announce/2011-January/msg00006.html

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Updated on 2015-03-25