RedHat Security Advisory RHSA-2009:1081

The remote host is missing updates to kernel-rt announced in advisory RHSA-2009:1081. These updated packages fix the following security issues: * a buffer overflow flaw was found in the CIFSTCon() function of the Linux kernel Common Internet File System (CIFS) implementation. When mounting a CIFS share, a malicious server could send an overly-long string to the client, possibly leading to a denial of service or privilege escalation on the client mounting the CIFS share. (CVE-2009-1439, 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) * a deficiency was found in the Linux kernel signals implementation. The kill_something_info() function did not check if a process was outside the caller's namespace before sending the kill signal, making it possible to kill processes in all process ID (PID) namespaces, breaking PID namespace isolation. (CVE-2009-1338, 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) All Red Hat Enterprise MRG users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: 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