7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
76.1%
The remote OracleVM system is missing necessary patches to address critical security updates :
BUILDINFO:
commit=aff08b43b1a504aa14a0fce65302ccf515b69fdf
Remove unsafe bits from the mod_l?_entry fastpath (Andrew Cooper) (CVE-2016-6258)
x86/mm: fully honor PS bits in guest page table walks (Jan Beulich) (CVE-2016-4480) (CVE-2016-4480)
libxl: Document ~/serial/ correctly (Ian Jackson) (CVE-2016-4962)
libxl: Cleanup: Have libxl__alloc_vdev use /libxl (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for nic in getinfo (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for nic in libxl_devid_to_device_nic (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for vtpm in getinfo (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for vtpm list (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for disk in getinfo (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend for disk eject event (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend in libxl__device_nextid (Ian Jackson) (CVE-2016-4962)
libxl: Do not trust frontend in libxl__devices_destroy (Ian Jackson) (CVE-2016-4962)
libxl: Provide libxl__backendpath_parse_domid (Ian Jackson) (CVE-2016-4962)
libxl: Record backend/frontend paths in /libxl/$DOMID (Ian Jackson) (CVE-2016-4962)
x86: limit GFNs to 32 bits for shadowed superpages. (Tim Deegan) (CVE-2016-3960)
x86: fix information leak on AMD CPUs (Jan Beulich) (CVE-2016-3158) (CVE-2016-3159) (CVE-2016-3158) (CVE-2016-3159) (CVE-2016-3158) (CVE-2016-3159)
x86: enforce consistent cachability of MMIO mappings (Jan Beulich) (CVE-2016-2270) (CVE-2016-2270)
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2016-0088.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(92600);
script_version("2.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2016-2270", "CVE-2016-3158", "CVE-2016-3159", "CVE-2016-3960", "CVE-2016-4480", "CVE-2016-4962", "CVE-2016-6258");
script_xref(name:"IAVB", value:"2016-B-0118-S");
script_name(english:"OracleVM 3.4 : xen (OVMSA-2016-0088) (Bunker Buster)");
script_summary(english:"Checks the RPM output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote OracleVM host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :
- BUILDINFO:
commit=aff08b43b1a504aa14a0fce65302ccf515b69fdf
- Remove unsafe bits from the mod_l?_entry fastpath
(Andrew Cooper) (CVE-2016-6258)
- x86/mm: fully honor PS bits in guest page table walks
(Jan Beulich) (CVE-2016-4480) (CVE-2016-4480)
- libxl: Document ~/serial/ correctly (Ian Jackson)
(CVE-2016-4962)
- libxl: Cleanup: Have libxl__alloc_vdev use /libxl (Ian
Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend for nic in getinfo (Ian
Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend for nic in
libxl_devid_to_device_nic (Ian Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend for vtpm in getinfo (Ian
Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend for vtpm list (Ian Jackson)
(CVE-2016-4962)
- libxl: Do not trust frontend for disk in getinfo (Ian
Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend for disk eject event (Ian
Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend in libxl__device_nextid
(Ian Jackson) (CVE-2016-4962)
- libxl: Do not trust frontend in libxl__devices_destroy
(Ian Jackson) (CVE-2016-4962)
- libxl: Provide libxl__backendpath_parse_domid (Ian
Jackson) (CVE-2016-4962)
- libxl: Record backend/frontend paths in /libxl/$DOMID
(Ian Jackson) (CVE-2016-4962)
- x86: limit GFNs to 32 bits for shadowed superpages. (Tim
Deegan) (CVE-2016-3960)
- x86: fix information leak on AMD CPUs (Jan Beulich)
(CVE-2016-3158) (CVE-2016-3159) (CVE-2016-3158)
(CVE-2016-3159) (CVE-2016-3158) (CVE-2016-3159)
- x86: enforce consistent cachability of MMIO mappings
(Jan Beulich) (CVE-2016-2270) (CVE-2016-2270)"
);
script_set_attribute(
attribute:"see_also",
value:"https://oss.oracle.com/pipermail/oraclevm-errata/2016-July/000503.html"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected xen / xen-tools 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:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:oracle:vm:xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/19");
script_set_attribute(attribute:"patch_publication_date", value:"2016/07/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/28");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"OracleVM Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
flag = 0;
if (rpm_exists(rpm:"xen-4.4.4-75", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-4.4.4-75.0.1.el6")) flag++;
if (rpm_exists(rpm:"xen-tools-4.4.4-75", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-tools-4.4.4-75.0.1.el6")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen / xen-tools");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2270
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3158
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3159
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4480
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6258
oss.oracle.com/pipermail/oraclevm-errata/2016-July/000503.html
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
0.005 Low
EPSS
Percentile
76.1%