Please Install the Updated Packages.

The kernel packages contain the Linux kernel, the core of any Linux operating system. These updated packages fix the following security issues: * a possible kernel memory leak was found in the Linux kernel Simple Internet Transition (SIT) INET6 implementation. This could allow a local unprivileged user to cause a denial of service. (CVE-2008-2136, Important) * a flaw was found in the Linux kernel setrlimit system call, when setting RLIMIT_CPU to a certain value. This could allow a local unprivileged user to bypass the CPU time limit. (CVE-2008-1294, Moderate) * multiple NULL pointer dereferences were found in various Linux kernel network drivers. These drivers were missing checks for terminal validity, which could allow privilege escalation. (CVE-2008-2812, Moderate) These updated packages fix the following bugs: * the GNU libc stub resolver is a minimal resolver that works with Domain Name System (DNS) servers to satisfy requests from applications for names. The GNU libc stub resolver did not specify a source UDP port, and therefore used predictable port numbers. This could have made DNS spoofing attacks easier. The Linux kernel has been updated to implement random UDP source ports where none are specified by an application. This allows applications, such as those using the GNU libc stub resolver, to use random UDP source ports, helping to make DNS spoofing attacks harder. * when using certain hardware, a bug in UART_BUG_TXEN may have caused incorrect hardware detection, causing data flow to &quot /dev/ttyS1&quot to hang. * a 50-75% drop in NFS server rewrite performance, compared to Red Hat Enterprise Linux 4.6, has been resolved. * due a bug in the fast userspace mutex code, while one thread fetched a pointer, another thread may have removed it, causing the first thread to fetch the wrong pointer, possibly causing a system crash. * on certain Hitachi hardware, removing the &quot uhci_hcd&quot module caused a kernel oops, and the following error: BUG: warning at arch/ia64/kernel/iosapic.c:1001/iosapic_unregister_intr() Even after the &quot uhci_hcd&quot module was reloaded, there was no access to USB devices. As well, on systems that have legacy interrupts, &quot acpi_unregister_gsi&quot incorrectly called &quot iosapci_unregister_intr()&quot , causing warning messages to be logged. * when a page was mapped with mmap(), and &quot PROT_WRITE&quot was the only &quot prot&quot argument, the first read of that page caused a segmentation fault. If ... Description truncated, for more information please check the Reference URL

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

• https://www.redhat.com/archives/rhsa-announce/2008-August/msg00000.html

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Updated on 2015-03-25