| Description: | The kernel packages contain the Linux kernel, the core of any Linux operating system.
These new kernel packages fix the following security issues:
A flaw was found in the virtual filesystem (VFS). An unprivileged local user could truncate directories to which they had write permission; this could render the contents of the directory inaccessible. (CVE-2008-0001, Important)
A flaw was found in the Xen PAL emulation on Intel 64 platforms. A guest Hardware-assisted virtual machine (HVM) could read the arbitrary physical memory of the host system, which could make information available to unauthorized users. (CVE-2007-6416, Important)
A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file, potentially containing sensitive information. (CVE-2007-6206, Moderate)
A buffer overflow flaw was found in the CIFS virtual file system. A remote,authenticated user could issue a request that could lead to a denial of service. (CVE-2007-5904, Moderate)
A flaw was found in the "sysfs_readdir" function. A local user could create a race condition which would cause a denial of service (kernel oops). (CVE-2007-3104, Moderate)
As well, these updated packages fix the following bugs:
running the "strace -f" command caused strace to hang, without displaying information about child processes.
unmounting an unresponsive, interruptable NFS mount, for example, one mounted with the "intr" option, may have caused a system crash.
a bug in the s2io.ko driver prevented VLAN devices from being added. Attempting to add a device to a VLAN, for example, running the "vconfig add [device-name] [vlan-id]" command caused vconfig to fail.
tux used an incorrect open flag bit. This caused problems when building packages in a chroot environment, such as mock, which is used by the koji build system.
Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.
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