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
7.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
31.1%
The remote host is missing an update for the
# Copyright (C) 2017 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.851495");
script_version("2021-09-15T12:01:38+0000");
script_tag(name:"last_modification", value:"2021-09-15 12:01:38 +0000 (Wed, 15 Sep 2021)");
script_tag(name:"creation_date", value:"2017-02-22 15:15:10 +0100 (Wed, 22 Feb 2017)");
script_cve_id("CVE-2016-7777", "CVE-2016-7908", "CVE-2016-7909", "CVE-2016-8667",
"CVE-2016-8669", "CVE-2016-8910", "CVE-2016-9377", "CVE-2016-9378",
"CVE-2016-9379", "CVE-2016-9380", "CVE-2016-9381", "CVE-2016-9382",
"CVE-2016-9383", "CVE-2016-9384", "CVE-2016-9385", "CVE-2016-9386",
"CVE-2016-9637");
script_tag(name:"cvss_base", value:"7.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2017-07-01 01:30:00 +0000 (Sat, 01 Jul 2017)");
script_tag(name:"qod_type", value:"package");
script_name("openSUSE: Security Advisory for xen (openSUSE-SU-2016:3134-1)");
script_tag(name:"summary", value:"The remote host is missing an update for the 'xen'
package(s) announced via the referenced advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"xen was updated to version 4.7.1 to fix 17 security issues.
These security issues were fixed:
- CVE-2016-9637: ioport array overflow allowing a malicious guest
administrator can escalate their privilege to that of the host
(bsc#1011652).
- CVE-2016-9386: x86 null segments were not always treated as unusable
allowing an unprivileged guest user program to elevate its privilege to
that of the guest operating system. Exploit of this vulnerability is
easy on Intel and more complicated on AMD (bsc#1009100).
- CVE-2016-9382: x86 task switch to VM86 mode was mis-handled, allowing a
unprivileged guest process to escalate its privilege to that of the
guest operating system on AMD hardware. On Intel hardware a malicious
unprivileged guest process can crash the guest (bsc#1009103).
- CVE-2016-9385: x86 segment base write emulation lacked canonical address
checks, allowing a malicious guest administrator to crash the host
(bsc#1009104).
- CVE-2016-9384: Guest 32-bit ELF symbol table load leaking host data to
unprivileged guest users (bsc#1009105).
- CVE-2016-9383: The x86 64-bit bit test instruction emulation was broken,
allowing a guest to modify arbitrary memory leading to arbitrary code
execution (bsc#1009107).
- CVE-2016-9377: x86 software interrupt injection was mis-handled,
allowing an unprivileged guest user to crash the guest (bsc#1009108).
- CVE-2016-9378: x86 software interrupt injection was mis-handled,
allowing an unprivileged guest user to crash the guest (bsc#1009108)
- CVE-2016-9381: Improper processing of shared rings allowing guest
administrators take over the qemu process, elevating their privilege to
that of the qemu process (bsc#1009109).
- CVE-2016-9379: Delimiter injection vulnerabilities in pygrub allowed
guest administrators to obtain the contents of sensitive host files or
delete the files (bsc#1009111).
- CVE-2016-9380: Delimiter injection vulnerabilities in pygrub allowed
guest administrators to obtain the contents of sensitive host files or
delete the files (bsc#1009111).
- CVE-2016-7777: Xen did not properly honor CR0.TS and CR0.EM, which
allowed local x86 HVM guest OS users to read or modify FPU, MMX, or XMM
register state information belonging to arbitrary tasks on the guest by
modifying an instruction while the hypervisor is preparing to emulate it
(bsc#1000106).
- CVE-2016-8910: The rtl8139_cplus_transmit function in hw/net/rtl8139.c
allowed local guest OS administrators to cause a denial of service
(infinite loop and CPU consumption) by leveraging failure to limit the
ring description ...
Description truncated, please see the referenced URL(s) for more information.");
script_tag(name:"affected", value:"xen on openSUSE Leap 42.2");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_xref(name:"openSUSE-SU", value:"2016:3134-1");
script_tag(name:"solution_type", value:"VendorFix");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
script_family("SuSE Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/suse", "ssh/login/rpms", re:"ssh/login/release=openSUSELeap42\.2");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-rpm.inc");
release = rpm_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "openSUSELeap42.2") {
if(!isnull(res = isrpmvuln(pkg:"xen-debugsource", rpm:"xen-debugsource~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo-32bit", rpm:"xen-libs-debuginfo-32bit~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.7.1_02~3.1", rls:"openSUSELeap42.2"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
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
7.2 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
31.1%