Please Install the Updated Packages.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security fixes: * several flaws were found in the way the Linux kernel CIFS implementation handles Unicode strings. CIFS clients convert Unicode strings sent by a server to their local character sets, and then write those strings into memory. If a malicious server sent a long enough string, it could write past the end of the target memory region and corrupt other memory areas, possibly leading to a denial of service or privilege escalation on the client mounting the CIFS share. (CVE-2009-1439, CVE-2009-1633, Important) * the Linux kernel Network File System daemon (nfsd) implementation did not drop the CAP_MKNOD capability when handling requests from local, unprivileged users. This flaw could possibly lead to an information leak or privilege escalation. (CVE-2009-1072, Moderate) * Frank Filz reported the NFSv4 client was missing a file permission check for the execute bit in some situations. This could allow local, unprivileged users to run non-executable files on NFSv4 mounted file systems. (CVE-2009-1630, Moderate) * a missing check was found in the hypervisor_callback() function in the Linux kernel provided by the kernel-xen package. This could cause a denial of service of a 32-bit guest if an application running in that guest accesses a certain memory location in the kernel. (CVE-2009-1758, Moderate) * a flaw was found in the AGPGART driver. The agp_generic_alloc_page() and agp_generic_alloc_pages() functions did not zero out the memory pages they allocate, which may later be available to user-space processes. This flaw could possibly lead to an information leak. (CVE-2009-1192, Low) Bug fixes: * a race in the NFS client between destroying cached access rights and unmounting an NFS file system could have caused a system crash. &quot Busy inodes&quot messages may have been logged. (BZ#498653) * nanosleep() could sleep several milliseconds less than the specified time on Intel Itanium-based systems. (BZ#500349) * LEDs for disk drives in AHCI mode may have displayed a fault state when there were no faults. (BZ#500120) * ptrace_do_wait() reported tasks were stopped each time the process doing the trace called wait(), instead of reporting it once. (BZ#486945) * epoll_wait() may have caused a system lockup and problems for applications. (BZ#497322) * missing capabilities could possibly allow users with an fsuid other than 0 to perform actions on some file system types that would otherwise be pr ... Description truncated, for more information please check the Reference URL

kernel on CentOS 5

• http://lists.centos.org/pipermail/centos-announce/2009-June/015975.html

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Updated on 2015-03-25