CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
85.5%
This update for xen fixes several issues. These security issues were fixed :
CVE-2017-10911: blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863)
CVE-2017-10912: Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)
CVE-2017-10913, CVE-2017-10914: Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)
CVE-2017-10915: Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915)
CVE-2017-10917: Missing NULL pointer check in event channel poll allows guests to DoS the host (XSA-221, bsc#1042924)
CVE-2017-10918: Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)
CVE-2017-10922, CVE-2017-10921, CVE-2017-10920: Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938)
CVE-2017-10916: PKRU and BND* leakage between vCPU-s might have leaked information to other guests (XSA-220, bsc#1042923)
CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160)
CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243)
CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count (bsc#1036470)
CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845).
CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation support was vulnerable to a NULL pointer dereference issue which allowed a privileged user inside guest to crash the Qemu process on the host resulting in DoS (bsc#1043297)
CVE-2017-9374: Missing free of ‘s->ipacket’, causes a host memory leak, allowing for DoS (bsc#1043074)
The update package also includes non-security fixes. See advisory for details.
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:1812-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(101350);
script_version("3.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");
script_cve_id("CVE-2017-10911", "CVE-2017-10912", "CVE-2017-10913", "CVE-2017-10914", "CVE-2017-10915", "CVE-2017-10916", "CVE-2017-10917", "CVE-2017-10918", "CVE-2017-10920", "CVE-2017-10921", "CVE-2017-10922", "CVE-2017-8112", "CVE-2017-8309", "CVE-2017-8905", "CVE-2017-9330", "CVE-2017-9374", "CVE-2017-9503");
script_xref(name:"IAVB", value:"2017-B-0074-S");
script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2017:1812-1)");
script_summary(english:"Checks rpm output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote SUSE host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"This update for xen fixes several issues. These security issues were
fixed :
- CVE-2017-10911: blkif responses leaked backend stack
data, which allowed unprivileged guest to obtain
sensitive information from the host or other guests
(XSA-216, bsc#1042863)
- CVE-2017-10912: Page transfer might have allowed PV
guest to elevate privilege (XSA-217, bsc#1042882)
- CVE-2017-10913, CVE-2017-10914: Races in the grant table
unmap code allowed for informations leaks and
potentially privilege escalation (XSA-218, bsc#1042893)
- CVE-2017-10915: Insufficient reference counts during
shadow emulation allowed a malicious pair of guest to
elevate their privileges to the privileges that XEN runs
under (XSA-219, bsc#1042915)
- CVE-2017-10917: Missing NULL pointer check in event
channel poll allows guests to DoS the host (XSA-221,
bsc#1042924)
- CVE-2017-10918: Stale P2M mappings due to insufficient
error checking allowed malicious guest to leak
information or elevate privileges (XSA-222, bsc#1042931)
- CVE-2017-10922, CVE-2017-10921, CVE-2017-10920: Grant
table operations mishandled reference counts allowing
malicious guests to escape (XSA-224, bsc#1042938)
- CVE-2017-10916: PKRU and BND* leakage between vCPU-s
might have leaked information to other guests (XSA-220,
bsc#1042923)
- CVE-2017-9330: USB OHCI Emulation in qemu allowed local
guest OS users to cause a denial of service (infinite
loop) by leveraging an incorrect return value
(bsc#1042160)
- CVE-2017-8309: Memory leak in the audio/audio.c allowed
remote attackers to cause a denial of service (memory
consumption) by repeatedly starting and stopping audio
capture (bsc#1037243)
- CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest
OS privileged users to cause a denial of service
(infinite loop and CPU consumption) via the message ring
page count (bsc#1036470)
- CVE-2017-8905: Xen a failsafe callback, which might have
allowed PV guest OS users to execute arbitrary code on
the host OS (XSA-215, bsc#1034845).
- CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter
emulation support was vulnerable to a NULL pointer
dereference issue which allowed a privileged user inside
guest to crash the Qemu process on the host resulting in
DoS (bsc#1043297)
- CVE-2017-9374: Missing free of 's->ipacket', causes a
host memory leak, allowing for DoS (bsc#1043074)
The update package also includes non-security fixes. See advisory for
details.
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1014136"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1026236"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1027519"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1031460"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1034845"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1036470"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1037243"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042160"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042863"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042882"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042893"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042915"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042923"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042924"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042931"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1042938"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1043074"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1043297"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10911/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10912/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10913/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10914/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10915/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10916/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10917/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10918/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10920/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10921/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-10922/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-8112/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-8309/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-8905/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-9330/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-9374/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-9503/"
);
# https://www.suse.com/support/update/announcement/2017/suse-su-20171812-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?c4f0ffc1"
);
script_set_attribute(
attribute:"solution",
value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE OpenStack Cloud 6:zypper in -t patch
SUSE-OpenStack-Cloud-6-2017-1121=1
SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2017-1121=1
SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2017-1121=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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:novell:suse_linux:xen");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-kmp-default-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/02");
script_set_attribute(attribute:"patch_publication_date", value:"2017/07/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/10");
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) 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/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-debugsource-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-doc-html-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-4.5.5_12_k3.12.74_60.64.45-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-debuginfo-4.5.5_12_k3.12.74_60.64.45-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-32bit-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-debuginfo-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-4.5.5_12-22.18.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.5.5_12-22.18.1")) 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");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10911
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10912
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10913
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10914
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10915
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10916
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10917
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10918
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10920
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10921
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10922
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8112
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8309
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8905
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9330
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9374
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9503
www.nessus.org/u?c4f0ffc1
bugzilla.suse.com/show_bug.cgi?id=1014136
bugzilla.suse.com/show_bug.cgi?id=1026236
bugzilla.suse.com/show_bug.cgi?id=1027519
bugzilla.suse.com/show_bug.cgi?id=1031460
bugzilla.suse.com/show_bug.cgi?id=1034845
bugzilla.suse.com/show_bug.cgi?id=1036470
bugzilla.suse.com/show_bug.cgi?id=1037243
bugzilla.suse.com/show_bug.cgi?id=1042160
bugzilla.suse.com/show_bug.cgi?id=1042863
bugzilla.suse.com/show_bug.cgi?id=1042882
bugzilla.suse.com/show_bug.cgi?id=1042893
bugzilla.suse.com/show_bug.cgi?id=1042915
bugzilla.suse.com/show_bug.cgi?id=1042923
bugzilla.suse.com/show_bug.cgi?id=1042924
bugzilla.suse.com/show_bug.cgi?id=1042931
bugzilla.suse.com/show_bug.cgi?id=1042938
bugzilla.suse.com/show_bug.cgi?id=1043074
bugzilla.suse.com/show_bug.cgi?id=1043297
www.suse.com/security/cve/CVE-2017-10911/
www.suse.com/security/cve/CVE-2017-10912/
www.suse.com/security/cve/CVE-2017-10913/
www.suse.com/security/cve/CVE-2017-10914/
www.suse.com/security/cve/CVE-2017-10915/
www.suse.com/security/cve/CVE-2017-10916/
www.suse.com/security/cve/CVE-2017-10917/
www.suse.com/security/cve/CVE-2017-10918/
www.suse.com/security/cve/CVE-2017-10920/
www.suse.com/security/cve/CVE-2017-10921/
www.suse.com/security/cve/CVE-2017-10922/
www.suse.com/security/cve/CVE-2017-8112/
www.suse.com/security/cve/CVE-2017-8309/
www.suse.com/security/cve/CVE-2017-8905/
www.suse.com/security/cve/CVE-2017-9330/
www.suse.com/security/cve/CVE-2017-9374/
www.suse.com/security/cve/CVE-2017-9503/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
85.5%