RHEL 5 : kernel (RHSA-2011:1813)

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:1813 advisory. - kernel: sctp dos CVE-2011-2482 - kernel: rpc task leak after flocking NFS share CVE-2011-2491 - kernel: /proc/PID/io infoleak CVE-2011-249...

kernel: xen: x86_emulate: fix SAHF emulation

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging HAP, allows guest users to cause a denial of service invalid pointer dereference and hypervisor crash via the SAHF instruction...