CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
65.2%
The remote OracleVM system is missing necessary patches to address critical security updates :
BUILDINFO: OVMF commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8
BUILDINFO: xen commit=b059d1de3b211fe5582c63f64b4822b9f85eafd2
BUILDINFO: QEMU upstream commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
BUILDINFO: QEMU traditional commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
BUILDINFO: IPXE commit=9a93db3f0947484e30e753bbd61a10b17336e20e
BUILDINFO: SeaBIOS commit=7d9cbe613694924921ed1a6f8947d711c5832eee
xend: fix memory leak of XendConfig.XendConfig object (Manjunath Patil) [Orabug: 28165871]
x86/HVM: Restart ioreq processing state machine (Boris Ostrovsky)
x86/spec-ctrl: Mitigations for LazyFPU (Andrew Cooper) [Orabug: 28135175] (CVE-2018-3665)
x86: Support fully eager FPU context switching (Andrew Cooper) [Orabug: 28135175] (CVE-2018-3665)
svm: fix incorrect TSC scaling (Haozhong Zhang) [Orabug:
27182906]
x86/AMD-ucode: correct multiple container handling (Jan Beulich)
x86, amd_ucode: fix coverity issues found in cpu_request_microcode (Aravind Gopalakrishnan) [Orabug:
28157269]
[xenmicrocode] Fix error reporting on successful return from tool (Ross Philipson) [Orabug: 28128754]
x86: correct default_xen_spec_ctrl calculation (Jan Beulich) [Orabug: 28035001]
x86/msr: Virtualise MSR_SPEC_CTRL.SSBD for guests to use (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/Intel: Mitigations for GPZ SP4 - Speculative Store Bypass (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/AMD: Mitigations for GPZ SP4 - Speculative Store Bypass (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Introduce a new spec-ctrl=
command line argument to replace bti=
(Andrew Cooper) [Orabug:
28035001] (CVE-2018-3639)
x86/cpuid: Improvements to guest policies for speculative sidechannel features (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Explicitly set Xen’s default MSR_SPEC_CTRL value (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Split X86_FEATURE_SC_MSR into PV and HVM variants (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Elide MSR_SPEC_CTRL handling in idle context when possible (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Rename bits of infrastructure to avoid NATIVE and VMEXIT (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Fold the XEN_IBRS_[SET,CLEAR] ALTERNATIVES together (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Merge bti_ist_info and use_shadow_spec_ctrl into spec_ctrl_flags (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Express Xen’s choice of MSR_SPEC_CTRL value as a variable (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Read MSR_ARCH_CAPABILITIES only once (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Assume that STIBP feature is always available (Boris Ostrovsky) [Orabug: 28035001] (CVE-2018-3639)
x86/spec_ctrl: Updates to retpoline-safety decision making (Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
Revert ‘x86/boot: Disable IBRS in intr/nmi exit path at bootup stage’ (Boris Ostrovsky) [Orabug: 28035001] (CVE-2018-3639)
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0232.
#
include('compat.inc');
if (description)
{
script_id(110791);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/12");
script_cve_id("CVE-2018-3639", "CVE-2018-3665");
script_name(english:"OracleVM 3.4 : xen (OVMSA-2018-0232) (Spectre)");
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: OVMF
commit=173bf5c847e3ca8b42c11796ce048d8e2e916ff8
- BUILDINFO: xen
commit=b059d1de3b211fe5582c63f64b4822b9f85eafd2
- BUILDINFO: QEMU upstream
commit=8bff6989bd0bafcc0ddf859c23ce6a2ff21a80ff
- BUILDINFO: QEMU traditional
commit=346fdd7edd73f8287d0d0a2bab9c67b71bc6b8ba
- BUILDINFO: IPXE
commit=9a93db3f0947484e30e753bbd61a10b17336e20e
- BUILDINFO: SeaBIOS
commit=7d9cbe613694924921ed1a6f8947d711c5832eee
- xend: fix memory leak of XendConfig.XendConfig object
(Manjunath Patil) [Orabug: 28165871]
- x86/HVM: Restart ioreq processing state machine (Boris
Ostrovsky)
- x86/spec-ctrl: Mitigations for LazyFPU (Andrew Cooper)
[Orabug: 28135175] (CVE-2018-3665)
- x86: Support fully eager FPU context switching (Andrew
Cooper) [Orabug: 28135175] (CVE-2018-3665)
- svm: fix incorrect TSC scaling (Haozhong Zhang) [Orabug:
27182906]
- x86/AMD-ucode: correct multiple container handling (Jan
Beulich)
- x86, amd_ucode: fix coverity issues found in
cpu_request_microcode (Aravind Gopalakrishnan) [Orabug:
28157269]
- [xenmicrocode] Fix error reporting on successful return
from tool (Ross Philipson) [Orabug: 28128754]
- x86: correct default_xen_spec_ctrl calculation (Jan
Beulich) [Orabug: 28035001]
- x86/msr: Virtualise MSR_SPEC_CTRL.SSBD for guests to use
(Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
- x86/Intel: Mitigations for GPZ SP4 - Speculative Store
Bypass (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/AMD: Mitigations for GPZ SP4 - Speculative Store
Bypass (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Introduce a new `spec-ctrl=` command line
argument to replace `bti=` (Andrew Cooper) [Orabug:
28035001] (CVE-2018-3639)
- x86/cpuid: Improvements to guest policies for
speculative sidechannel features (Andrew Cooper)
[Orabug: 28035001] (CVE-2018-3639)
- x86/spec_ctrl: Explicitly set Xen's default
MSR_SPEC_CTRL value (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Split X86_FEATURE_SC_MSR into PV and HVM
variants (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Elide MSR_SPEC_CTRL handling in idle
context when possible (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Rename bits of infrastructure to avoid
NATIVE and VMEXIT (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Fold the XEN_IBRS_[SET,CLEAR]
ALTERNATIVES together (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Merge bti_ist_info and
use_shadow_spec_ctrl into spec_ctrl_flags (Andrew
Cooper) [Orabug: 28035001] (CVE-2018-3639)
- x86/spec_ctrl: Express Xen's choice of MSR_SPEC_CTRL
value as a variable (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Read MSR_ARCH_CAPABILITIES only once
(Andrew Cooper) [Orabug: 28035001] (CVE-2018-3639)
- x86/spec_ctrl: Assume that STIBP feature is always
available (Boris Ostrovsky) [Orabug: 28035001]
(CVE-2018-3639)
- x86/spec_ctrl: Updates to retpoline-safety decision
making (Andrew Cooper) [Orabug: 28035001]
(CVE-2018-3639)
- Revert 'x86/boot: Disable IBRS in intr/nmi exit path at
bootup stage' (Boris Ostrovsky) [Orabug: 28035001]
(CVE-2018-3639)");
script_set_attribute(attribute:"see_also", value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-June/000867.html");
script_set_attribute(attribute:"solution", value:
"Update the affected xen / xen-tools packages.");
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:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-3665");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/22");
script_set_attribute(attribute:"patch_publication_date", value:"2018/06/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/29");
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:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"OracleVM Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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-4.4.4-196", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-4.4.4-196.0.1.el6")) flag++;
if (rpm_exists(rpm:"xen-tools-4.4.4-196", release:"OVS3.4") && rpm_check(release:"OVS3.4", reference:"xen-tools-4.4.4-196.0.1.el6")) 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 / xen-tools");
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
65.2%