Vulnerabilities > CVE-2007-4993 - Improper Input Validation vulnerability in Xensource INC XEN 3.0.3

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1384. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(26931);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:20");

  script_cve_id("CVE-2007-1320", "CVE-2007-4993");
  script_xref(name:"DSA", value:"1384");

  script_name(english:"Debian DSA-1384-1 : xen-utils - several vulnerabilities");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several local vulnerabilities have been discovered in the Xen
hypervisor packages which may lead to the execution of arbitrary code.
The Common Vulnerabilities and Exposures project identifies the
following problems :

  - CVE-2007-4993
    By use of a specially crafted grub configuration file a
    domU user may be able to execute arbitrary code upon the
    dom0 when pygrub is being used.

  - CVE-2007-1320
    Multiple heap-based buffer overflows in the Cirrus VGA
    extension, provided by QEMU, may allow local users to
    execute arbitrary code via 'bitblt' heap overflow."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=444430"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=444007"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-4993"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2007-1320"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2007/dsa-1384"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the xen-utils package.

For the stable distribution (etch), these problems have been fixed in
version 3.0.3-0-3."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/10/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/10/09");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"4.0", prefix:"xen-docs-3.0", reference:"3.0.3-0-3")) flag++;
if (deb_check(release:"4.0", prefix:"xen-hypervisor-3.0.3-1-amd64", reference:"3.0.3-0-3")) flag++;
if (deb_check(release:"4.0", prefix:"xen-hypervisor-3.0.3-1-i386", reference:"3.0.3-0-3")) flag++;
if (deb_check(release:"4.0", prefix:"xen-hypervisor-3.0.3-1-i386-pae", reference:"3.0.3-0-3")) flag++;
if (deb_check(release:"4.0", prefix:"xen-ioemu-3.0.3-1", reference:"3.0.3-0-3")) flag++;
if (deb_check(release:"4.0", prefix:"xen-utils-3.0.3-1", reference:"3.0.3-0-3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2007:203. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(27614);
  script_version ("1.20");
  script_cvs_date("Date: 2019/08/02 13:32:49");

  script_cve_id(
    "CVE-2007-1320",
    "CVE-2007-1321",
    "CVE-2007-3919",
    "CVE-2007-4993",
    "CVE-2007-5729",
    "CVE-2007-5730"
  );
  script_bugtraq_id(23731);
  script_xref(name:"MDKSA", value:"2007:203");

  script_name(english:"Mandrake Linux Security Advisory : xen (MDKSA-2007:203)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandrake Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Tavis Ormandy discovered a heap overflow flaw during video-to-video
copy operations in the Cirrus VGA extension code that is used in Xen.
A malicious local administrator of a guest domain could potentially
trigger this flaw and execute arbitrary code outside of the domain
(CVE-2007-1320).

Tavis Ormandy also discovered insufficient input validation leading to
a heap overflow in the NE2000 network driver in Xen. If the driver is
in use, a malicious local administrator of a guest domain could
potentially trigger this flaw and execute arbitrary code outside of
the domain (CVE-2007-1321, CVE-2007-5729, CVE-2007-5730).

Steve Kemp found that xen-utils used insecure temporary files within
the xenmon tool that could allow local users to truncate arbitrary
files (CVE-2007-3919).

Joris van Rantwijk discovered a flaw in Pygrub, which is used as a
boot loader for guest domains. A malicious local administrator of a
guest domain could create a carefully-crafted grub.conf file which
could trigger the execution of arbitrary code outside of that domain
(CVE-2007-4993).

Updated packages have been patched to prevent these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 59, 119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:xen");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2007.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/11/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/02");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2007.0", reference:"xen-3.0.3-0.20060703.3.1mdv2007.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2007.1", reference:"xen-3.0.3-0.20060703.5.1mdv2007.1", yank:"mdv")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2007:0323 and 
# CentOS Errata and Security Advisory 2007:0323 respectively.
#

include("compat.inc");

if (description)
{
  script_id(43639);
  script_version("1.15");
  script_cvs_date("Date: 2019/10/25 13:36:03");

  script_cve_id("CVE-2007-1320", "CVE-2007-1321", "CVE-2007-4993");
  script_bugtraq_id(23731);
  script_xref(name:"RHSA", value:"2007:0323");

  script_name(english:"CentOS 5 : xen (CESA-2007:0323)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated Xen package to fix multiple security issues is now
available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

The Xen package contains the tools for managing the virtual machine
monitor in Red Hat Enterprise Linux virtualization.

The following security flaws are fixed in the updated Xen package :

Joris van Rantwijk found a flaw in the Pygrub utility which is used as
a boot loader for guest domains. A malicious local administrator of a
guest domain could create a carefully crafted grub.conf file which
would trigger the execution of arbitrary code outside of that domain.
(CVE-2007-4993)

Tavis Ormandy discovered a heap overflow flaw during video-to-video
copy operations in the Cirrus VGA extension code used in Xen. A
malicious local administrator of a guest domain could potentially
trigger this flaw and execute arbitrary code outside of the domain.
(CVE-2007-1320)

Tavis Ormandy discovered insufficient input validation leading to a
heap overflow in the Xen NE2000 network driver. If the driver is in
use, a malicious local administrator of a guest domain could
potentially trigger this flaw and execute arbitrary code outside of
the domain. Xen does not use this driver by default. (CVE-2007-1321)

Users of Xen should update to these erratum packages containing
backported patches which correct these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2007-October/014266.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d84a816b"
  );
  # https://lists.centos.org/pipermail/centos-announce/2007-October/014267.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1de8b6aa"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:xen-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/05/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/10/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-5", reference:"xen-3.0.3-25.0.4.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"xen-devel-3.0.3-25.0.4.el5")) flag++;
if (rpm_check(release:"CentOS-5", reference:"xen-libs-3.0.3-25.0.4.el5")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-libs");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2007:0323. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(26903);
  script_version ("1.27");
  script_cvs_date("Date: 2019/10/25 13:36:12");

  script_cve_id("CVE-2007-1320", "CVE-2007-1321", "CVE-2007-4993");
  script_bugtraq_id(23731);
  script_xref(name:"RHSA", value:"2007:0323");

  script_name(english:"RHEL 5 : xen (RHSA-2007:0323)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated Xen package to fix multiple security issues is now
available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

The Xen package contains the tools for managing the virtual machine
monitor in Red Hat Enterprise Linux virtualization.

The following security flaws are fixed in the updated Xen package :

Joris van Rantwijk found a flaw in the Pygrub utility which is used as
a boot loader for guest domains. A malicious local administrator of a
guest domain could create a carefully crafted grub.conf file which
would trigger the execution of arbitrary code outside of that domain.
(CVE-2007-4993)

Tavis Ormandy discovered a heap overflow flaw during video-to-video
copy operations in the Cirrus VGA extension code used in Xen. A
malicious local administrator of a guest domain could potentially
trigger this flaw and execute arbitrary code outside of the domain.
(CVE-2007-1320)

Tavis Ormandy discovered insufficient input validation leading to a
heap overflow in the Xen NE2000 network driver. If the driver is in
use, a malicious local administrator of a guest domain could
potentially trigger this flaw and execute arbitrary code outside of
the domain. Xen does not use this driver by default. (CVE-2007-1321)

Users of Xen should update to these erratum packages containing
backported patches which correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-1320"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-1321"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-4993"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2007:0323"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected xen, xen-devel and / or xen-libs packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:xen-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/05/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/10/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2007:0323";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"xen-3.0.3-25.0.4.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"xen-3.0.3-25.0.4.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"xen-devel-3.0.3-25.0.4.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"xen-devel-3.0.3-25.0.4.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"xen-libs-3.0.3-25.0.4.el5")) flag++;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"xen-libs-3.0.3-25.0.4.el5")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-devel / xen-libs");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2008-2083.
#

include("compat.inc");

if (description)
{
  script_id(31316);
  script_version ("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:27");

  script_cve_id("CVE-2008-0928");
  script_bugtraq_id(23731);
  script_xref(name:"FEDORA", value:"2008-2083");

  script_name(english:"Fedora 7 : xen-3.1.2-2.fc7 (2008-2083)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - Sat Feb 23 2008 Daniel P. Berrange <berrange at
    redhat.com> - 3.1.2-2.fc7

    - Fix block device extents check (rhbz #433560)

    - Sat Dec 1 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.2-1.fc7

    - Upgrade to 3.1.2 bugfix release

    - Fri Oct 26 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-8.fc7

    - Fixed xenbaked tmpfile flaw (CVE-2007-3919)

    - Wed Sep 26 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-7.fc7

    - Fixed rtl8139 checksum calculation for Vista (rhbz
      #308201)

    - Wed Sep 26 2007 Chris Lalancette <clalance at
      redhat.com> - 3.1.0-6.fc7

    - QEmu NE2000 overflow check - CVE-2007-1321

    - Pygrub guest escape - CVE-2007-4993

    - Mon Sep 24 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-5.fc7

    - Fix generation of manual pages (rhbz #250791)

    - Fix 32-on-64 PVFB for FC6 legacy guests

    - Mon Sep 24 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-4.fc7

    - Fix VMX assist IRQ handling (rhbz #279581)

    - Sun Sep 23 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-3.fc7

    - Don't clobber the VIF type attribute in FV guests
      (rhbz #247122)

    - Wed Aug 1 2007 Markus Armbruster <armbru at
      redhat.com>

    - Put guest's native protocol ABI into xenstore, to
      provide for older kernels running 32-on-64.

  - VNC keymap fixes

    - Fix race conditions in LibVNCServer on client
      disconnect

    - Mon Jun 11 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-2.fc7

    - Remove patch which kills VNC monitor

    - Fix HVM save/restore file path to be /var/lib/xen
      instead of /tmp

    - Don't spawn a bogus xen-vncfb daemon for HVM guests

    - Fri May 25 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-1.fc7

    - Updated to official 3.1.0 tar.gz

    - Fixed data corruption from VNC client disconnect (bz
      241303)

    - Thu May 17 2007 Daniel P. Berrange <berrange at
      redhat.com> - 3.1.0-0.rc7.2.fc7

    - Ensure xen-vncfb processes are cleanedup if guest
      quits (bz 240406)

    - Tear down guest if device hotplug fails

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=433560"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2008-February/008338.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?863e6f6b"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:7");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/02/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 7.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC7", reference:"xen-3.1.2-2.fc7")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen");
}