Synopsis: Moderate: kernel security, bug fix, and enhancement update Issue Date: 2012-04-17 CVE Numbers: CVE-2012-0879 CVE-2012-1090 CVE-2012-1097 The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * Numerous reference count leaks were found in the Linux kernel's block layer I/O context handling implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2012-0879, Moderate) * A flaw was found in the Linux kernel's cifs_lookup() implementation. POSIX open during lookup should only be supported for regular files. When non-regular files (for example, a named (FIFO) pipe or other special files) are opened on lookup, it could cause a denial of service. (CVE-2012-1090, Moderate) * It was found that the Linux kernel's register set (regset) common infrastructure implementation did not check if the required get and set handlers were initialized. A local, unprivileged user could use this flaw to cause a denial of service by performing a register set operation with a ptrace() PTRACE_SETREGSET or PTRACE_GETREGSET request. (CVE-2012-1097, Moderate) This update also fixes several bugs and adds various enhancements. The system must be rebooted for this update to take effect. SL6: i386 kernel-2.6.32-220.13.1.el6.i686.rpm kernel-debug-2.6.32-220.13.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debug-devel-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm kernel-devel-2.6.32-220.13.1.el6.i686.rpm kernel-headers-2.6.32-220.13.1.el6.i686.rpm perf-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm python-perf-2.6.32-220.13.1.el6.i686.rpm noarch kernel-doc-2.6.32-220.13.1.el6.noarch.rpm kernel-firmware-2.6.32-220.13.1.el6.noarch.rpm x86_64 kernel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm kernel-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-headers-2.6.32-220.13.1.el6.x86_64.rpm perf-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm python-perf-2.6.32-220.13.1.el6.x86_64.rpm - Scientific Linux Development Team