This update for xen fixes several issues.
These security issues were fixed :
A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843)
A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844).
CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034994).
CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028655)
These non-security issues were fixed :
bsc#1029827: Additional xenstore patch
bsc#1036146: Xen VM dumped core to wrong path
bsc#1022703: Prevent Xen HVM guest with OVMF to hang with unattached CDRom This update was imported from the SUSE:SLE-12-SP2: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-2017-563.
#
# The text description of this plugin is (C) SUSE LLC.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(100086);
script_version("3.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2016-9603", "CVE-2017-7718");
script_name(english:"openSUSE Security Update : xen (openSUSE-2017-563)");
script_summary(english:"Check for the openSUSE-2017-563 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 several issues.
These security issues were fixed :
- A malicious 64-bit PV guest may be able to access all of
system memory, allowing for all of privilege escalation,
host crashes, and information leaks by placing a IRET
hypercall in the middle of a multicall batch (XSA-213,
bsc#1034843)
- A malicious pair of guests may be able to access all of
system memory, allowing for all of privilege escalation,
host crashes, and information leaks because of a missing
check when transfering pages via GNTTABOP_transfer
(XSA-214, bsc#1034844).
- CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local
guest OS privileged users to cause a denial of service
(out-of-bounds read and QEMU process crash) via vectors
related to copying VGA data via the
cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_
functions (bsc#1034994).
- CVE-2016-9603: A privileged user within the guest VM
could have caused a heap overflow in the device model
process, potentially escalating their privileges to that
of the device model process (bsc#1028655)
These non-security issues were fixed :
- bsc#1029827: Additional xenstore patch
- bsc#1036146: Xen VM dumped core to wrong path
- bsc#1022703: Prevent Xen HVM guest with OVMF to hang
with unattached CDRom This update was imported from the
SUSE:SLE-12-SP2:Update update project."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022703"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1028655"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1029827"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1030144"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034843"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034844"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034994"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1036146"
);
script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
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-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit");
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:42.2");
script_set_attribute(attribute:"patch_publication_date", value:"2017/05/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/10");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 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 !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
flag = 0;
if ( rpm_check(release:"SUSE42.2", reference:"xen-debugsource-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"xen-devel-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"xen-libs-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"xen-libs-debuginfo-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"xen-tools-domU-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"xen-tools-domU-debuginfo-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-doc-html-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-libs-32bit-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-tools-4.7.2_04-11.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"xen-tools-debuginfo-4.7.2_04-11.6.1") ) 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-debugsource / xen-devel / xen-libs-32bit / xen-libs / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9603
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7718
bugzilla.opensuse.org/show_bug.cgi?id=1022703
bugzilla.opensuse.org/show_bug.cgi?id=1028655
bugzilla.opensuse.org/show_bug.cgi?id=1029827
bugzilla.opensuse.org/show_bug.cgi?id=1030144
bugzilla.opensuse.org/show_bug.cgi?id=1034843
bugzilla.opensuse.org/show_bug.cgi?id=1034844
bugzilla.opensuse.org/show_bug.cgi?id=1034994
bugzilla.opensuse.org/show_bug.cgi?id=1036146