4.7 Medium
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
5.6 Medium
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:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
0.0004 Low
EPSS
Percentile
13.3%
This update for xen fixes the following security issues :
CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis (bsc#1091107, bsc#1027519).
Incorrect MSR_DEBUGCTL handling let guests enable BTS allowing a malicious or buggy guest administrator can lock up the entire host (bsc#1103276) This update was imported from the SUSE:SLE-15:Update update project.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2018-911.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(112009);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2018-3646");
script_name(english:"openSUSE Security Update : xen (openSUSE-2018-911) (Foreshadow)");
script_summary(english:"Check for the openSUSE-2018-911 patch");
script_set_attribute(
attribute:"synopsis",
value:"The remote openSUSE host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"This update for xen fixes the following security issues :
- CVE-2018-3646: Systems with microprocessors utilizing
speculative execution and address translations may have
allowed unauthorized disclosure of information residing
in the L1 data cache to an attacker with local user
access with guest OS privilege via a terminal page fault
and a side-channel analysis (bsc#1091107, bsc#1027519).
- Incorrect MSR_DEBUGCTL handling let guests enable BTS
allowing a malicious or buggy guest administrator can
lock up the entire host (bsc#1103276) This update was
imported from the SUSE:SLE-15:Update update project."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1027519"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1091107"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1103276"
);
script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
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_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-doc-html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.0");
script_set_attribute(attribute:"patch_publication_date", value:"2018/08/19");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/20");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"SuSE Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE15.0", reference:"xen-debugsource-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"xen-devel-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"xen-libs-debuginfo-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", reference:"xen-tools-domU-debuginfo-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-doc-html-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-libs-32bit-debuginfo-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-4.10.1_08-lp150.2.9.1") ) flag++;
if ( rpm_check(release:"SUSE15.0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.10.1_08-lp150.2.9.1") ) 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-debugsource / xen-devel / xen-doc-html / xen-libs / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | opensuse | xen | p-cpe:/a:novell:opensuse:xen |
novell | opensuse | xen-debugsource | p-cpe:/a:novell:opensuse:xen-debugsource |
novell | opensuse | xen-devel | p-cpe:/a:novell:opensuse:xen-devel |
novell | opensuse | xen-doc-html | p-cpe:/a:novell:opensuse:xen-doc-html |
novell | opensuse | xen-libs | p-cpe:/a:novell:opensuse:xen-libs |
novell | opensuse | xen-libs-32bit | p-cpe:/a:novell:opensuse:xen-libs-32bit |
novell | opensuse | xen-libs-32bit-debuginfo | p-cpe:/a:novell:opensuse:xen-libs-32bit-debuginfo |
novell | opensuse | xen-libs-debuginfo | p-cpe:/a:novell:opensuse:xen-libs-debuginfo |
novell | opensuse | xen-tools | p-cpe:/a:novell:opensuse:xen-tools |
novell | opensuse | xen-tools-debuginfo | p-cpe:/a:novell:opensuse:xen-tools-debuginfo |
4.7 Medium
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
5.6 Medium
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:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
0.0004 Low
EPSS
Percentile
13.3%