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CentOS Update for kmod-kvm CESA-2012:1235 centos5

🗓️ 07 Sep 2012 00:00:00Reported by Copyright (c) 2012 Greenbone Networks GmbHType 
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CentOS Update for kmod-kvm CESA-2012:1235 centos5 - Fixes QEMU VT100 Terminal Escape Sequences Handling Fla

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###############################################################################
# OpenVAS Vulnerability Test
#
# CentOS Update for kmod-kvm CESA-2012:1235 centos5 
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2012 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 QEMU handled VT100 terminal escape sequences
  when emulating certain character devices. A guest user with privileges to
  write to a character device that is emulated on the host using a virtual
  console back-end could use this flaw to crash the qemu-kvm process on the
  host or, possibly, escalate their privileges on the host. (CVE-2012-3515)
  
  This flaw did not affect the default use of KVM. Affected configurations
  were:
  
  * When guests were started from the command line ("/usr/libexec/qemu-kvm"),
  and without specifying a serial or parallel device that specifically does
  not use a virtual console (vc) back-end. (Note that Red Hat does not
  support invoking "qemu-kvm" from the command line on Red Hat Enterprise
  Linux 5.)
  
  * Guests that were managed via libvirt, such as when using Virtual Machine
  Manager (virt-manager), but that have a serial or parallel device that uses
  a virtual console back-end. By default, guests managed via libvirt will not
  use a virtual console back-end for such devices.
  
  Red Hat would like to thank the Xen project for reporting this issue.
  
  All KVM users should upgrade to these updated packages, which correct this
  issue. Note: 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_xref(name : "URL" , value : "http://lists.centos.org/pipermail/centos-announce/2012-September/018847.html");
  script_id(881487);
  script_version("$Revision: 8313 $");
  script_tag(name:"last_modification", value:"$Date: 2018-01-08 08:02:11 +0100 (Mon, 08 Jan 2018) $");
  script_tag(name:"creation_date", value:"2012-09-07 11:26:09 +0530 (Fri, 07 Sep 2012)");
  script_cve_id("CVE-2012-3515");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_xref(name: "CESA", value: "2012:1235");
  script_name("CentOS Update for kmod-kvm CESA-2012:1235 centos5 ");

  script_tag(name: "summary" , value: "Check for the Version of kmod-kvm");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2012 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~83~249.el5.centos.5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kmod-kvm-debug", rpm:"kmod-kvm-debug~83~249.el5.centos.5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm", rpm:"kvm~83~249.el5.centos.5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm-qemu-img", rpm:"kvm-qemu-img~83~249.el5.centos.5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"kvm-tools", rpm:"kvm-tools~83~249.el5.centos.5", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

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

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