The remote Redhat Enterprise Linux 5 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2009:1465 advisory.

    KVM (Kernel-based Virtual Machine) is a full virtualization solution for     Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for     the standard Red Hat Enterprise Linux kernel.

    The kvm_emulate_hypercall() implementation was missing a check for the     Current Privilege Level (CPL). A local, unprivileged user in a virtual     machine could use this flaw to cause a local denial of service or escalate     their privileges within that virtual machine. (CVE-2009-3290)

    This update also fixes the following bugs:

    * non-maskable interrupts (NMI) were not supported on systems with AMD     processors. As a consequence, Windows Server 2008 R2 guests running with     more than one virtual CPU assigned on systems with AMD processors would     hang at the Windows shut down screen when a restart was attempted. This     update adds support for NMI filtering on systems with AMD processors,     allowing clean restarts of Windows Server 2008 R2 guests running with     multiple virtual CPUs. (BZ#520694)

    * significant performance issues for guests running 64-bit editions of     Windows. This update improves performance for guests running 64-bit     editions of Windows. (BZ#521793)

    * Windows guests may have experienced time drift. (BZ#521794)

    * removing the Red Hat VirtIO Ethernet Adapter from a guest running Windows     Server 2008 R2 caused KVM to crash. With this update, device removal should     not cause this issue. (BZ#524557)

    All KVM users should upgrade to these updated packages, which contain     backported patches to resolve these issues. Note: The procedure in the     Solution section must be performed before this update takes effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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RHEL 5 : kvm (RHSA-2009:1465)

medium Nessus Plugin ID 63897

Version 1.16