Ubuntu 9.10 : qemu-kvm vulnerability (USN-863-1)

2009-12-04T00:00:00
ID UBUNTU_USN-863-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-27T00:00:00

Description

It was discovered that QEMU did not properly setup the virtio networking features available to its guests. A remote attacker could exploit this to crash QEMU guests which use virtio networking on Linux kernels earlier than 2.6.26.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-863-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(43001);
  script_version("$Revision: 1.9 $");
  script_cvs_date("$Date: 2016/05/27 14:45:43 $");

  script_cve_id("CVE-2010-0741");
  script_osvdb_id(60894);
  script_xref(name:"USN", value:"863-1");

  script_name(english:"Ubuntu 9.10 : qemu-kvm vulnerability (USN-863-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that QEMU did not properly setup the virtio
networking features available to its guests. A remote attacker could
exploit this to crash QEMU guests which use virtio networking on Linux
kernels earlier than 2.6.26.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-arm-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-kvm-extras");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/12/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2009-2016 Canonical, Inc. / NASL script (C) 2009-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(9\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 9.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"9.10", pkgname:"kvm", pkgver:"84+dfsg-0ubuntu16+0.11.0+0ubuntu6.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"qemu", pkgver:"0.11.0-0ubuntu6.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"qemu-arm-static", pkgver:"0.11.0-0ubuntu6.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"qemu-kvm", pkgver:"0.11.0-0ubuntu6.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"qemu-kvm-extras", pkgver:"0.11.0-0ubuntu6.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kvm / qemu / qemu-arm-static / qemu-kvm / qemu-kvm-extras");
}