CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
94.1%
Petr Matousek discovered that libvirt did not always honor read-only connections. An attacker who is authorized to connect to the libvirt daemon could exploit this to cause a denial of service via application crash.
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-1094-1. 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(53218);
script_version("1.10");
script_cvs_date("Date: 2019/09/19 12:54:26");
script_cve_id("CVE-2011-1146");
script_bugtraq_id(46820);
script_xref(name:"USN", value:"1094-1");
script_name(english:"Ubuntu 9.10 / 10.04 LTS / 10.10 : libvirt vulnerability (USN-1094-1)");
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:
"Petr Matousek discovered that libvirt did not always honor read-only
connections. An attacker who is authorized to connect to the libvirt
daemon could exploit this to cause a denial of service via application
crash.
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:"see_also",
value:"https://usn.ubuntu.com/1094-1/"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/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_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libvirt0-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-libvirt");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/03/15");
script_set_attribute(attribute:"patch_publication_date", value:"2011/03/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/03/30");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
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 (! preg(pattern:"^(9\.10|10\.04|10\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 9.10 / 10.04 / 10.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
flag = 0;
if (ubuntu_check(osver:"9.10", pkgname:"libvirt-bin", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libvirt-dev", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libvirt-doc", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libvirt0", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libvirt0-dbg", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"python-libvirt", pkgver:"0.7.0-1ubuntu13.3")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt-bin", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt-dev", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt-doc", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt0", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libvirt0-dbg", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"python-libvirt", pkgver:"0.7.5-5ubuntu27.9")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt-bin", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt-dev", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt-doc", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt0", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libvirt0-dbg", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"python-libvirt", pkgver:"0.8.3-1ubuntu14.1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
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, "libvirt / libvirt-bin / libvirt-dev / libvirt-doc / libvirt0 / etc");
}