CentOS Update for kmod-kvm CESA-2013:0727 centos5

###############################################################################
# OpenVAS Vulnerability Test
#
# CentOS Update for kmod-kvm CESA-2013:0727 centos5
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2013 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

include("revisions-lib.inc");
tag_insight = "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.

  A flaw was found in the way KVM handled guest time updates when the buffer
  the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state
  register (MSR) crossed a page boundary. A privileged guest user could use
  this flaw to crash the host or, potentially, escalate their privileges,
  allowing them to execute arbitrary code at the host kernel level.
  (CVE-2013-1796)

  A potential use-after-free flaw was found in the way KVM handled guest time
  updates when the GPA (guest physical address) the guest registered by
  writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) fell into a
  movable or removable memory region of the hosting user-space process (by
  default, QEMU-KVM) on the host. If that memory region is deregistered from
  KVM using KVM_SET_USER_MEMORY_REGION and the allocated virtual memory
  reused, a privileged guest user could potentially use this flaw to
  escalate their privileges on the host. (CVE-2013-1797)

  A flaw was found in the way KVM emulated IOAPIC (I/O Advanced Programmable
  Interrupt Controller). A missing validation check in the
  ioapic_read_indirect() function could allow a privileged guest user to
  crash the host, or read a substantial portion of host kernel memory.
  (CVE-2013-1798)

  Red Hat would like to thank Andrew Honig of Google for reporting all of
  these issues.

  All users of kvm are advised to upgrade to these updated packages, which
  contain backported patches to correct these issues. Note that the procedure
  in the Solution section must be performed before this update will take
  effect.";


tag_affected = "kmod-kvm on CentOS 5";
tag_solution = "Please Install the Updated Packages.";

if(description)
{
  script_id(881709);
  script_version("$Revision: 8509 $");
  script_tag(name:"last_modification", value:"$Date: 2018-01-24 07:57:46 +0100 (Wed, 24 Jan 2018) $");
  script_tag(name:"creation_date", value:"2013-04-15 10:12:35 +0530 (Mon, 15 Apr 2013)");
  script_cve_id("CVE-2013-1796", "CVE-2013-1797", "CVE-2013-1798");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:A/AC:H/Au:N/C:C/I:C/A:C");
  script_name("CentOS Update for kmod-kvm CESA-2013:0727 centos5 ");

  script_xref(name: "CESA", value: "2013:0727");
  script_xref(name: "URL" , value: "http://lists.centos.org/pipermail/centos-announce/2013-April/019683.html");
  script_tag(name: "summary" , value: "Check for the Version of kmod-kvm");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2013 Greenbone Networks GmbH");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms");
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("pkg-lib-rpm.inc");

release = get_kb_item("ssh/login/release");

res = "";
if(release == NULL){
  exit(0);
}

if(release == "CentOS5")
{

  if ((res = isrpmvuln(pkg:"kmod-kvm", rpm:"kmod-kvm~83~262.el5.centos.3", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kmod-kvm-debug", rpm:"kmod-kvm-debug~83~262.el5.centos.3", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm", rpm:"kvm~83~262.el5.centos.3", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm-qemu-img", rpm:"kvm-qemu-img~83~262.el5.centos.3", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm-tools", rpm:"kvm-tools~83~262.el5.centos.3", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}