CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/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
84.7%
This update for xen fixes the following security issues :
blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863)
Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882)
Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893)
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)
Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931)
Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938)
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-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845).
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-2017:1715-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(101142);
script_version("3.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2017-8309", "CVE-2017-8905", "CVE-2017-9330");
script_name(english:"SUSE SLES11 Security Update : xen (SUSE-SU-2017:1715-1)");
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 the following security issues :
- blkif responses leaked backend stack data, which allowed
unprivileged guest to obtain sensitive information from
the host or other guests (XSA-216, bsc#1042863)
- Page transfer might have allowed PV guest to elevate
privilege (XSA-217, bsc#1042882)
- Races in the grant table unmap code allowed for
informations leaks and potentially privilege escalation
(XSA-218, bsc#1042893)
- 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)
- Stale P2M mappings due to insufficient error checking
allowed malicious guest to leak information or elevate
privileges (XSA-222, bsc#1042931)
- Grant table operations mishandled reference counts
allowing malicious guests to escape (XSA-224,
bsc#1042938)
- 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-2017-8905: Xen a failsafe callback, which might have
allowed PV guest OS users to execute arbitrary code on
the host OS (XSA-215, bsc#1034845).
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=1034845"
);
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=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://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/"
);
# https://www.suse.com/support/update/announcement/2017/suse-su-20171715-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?ba966bbf"
);
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 Linux Enterprise Server 11-SP3-LTSS:zypper in -t patch
slessp3-xen-13181=1
SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch
sleposp3-xen-13181=1
SUSE Linux Enterprise Debuginfo 11-SP3:zypper in -t patch
dbgsp3-xen-13181=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/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-doc-html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-pdf");
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-pae");
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-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/11");
script_set_attribute(attribute:"patch_publication_date", value:"2017/06/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/30");
script_set_attribute(attribute:"generated_plugin", value:"current");
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:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES11", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "i386|i486|i586|i686|x86_64") audit(AUDIT_ARCH_NOT, "i386 / i486 / i586 / i686 / x86_64", cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP3", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-kmp-default-4.2.5_21_3.0.101_0.47.102-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-libs-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-doc-html-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-doc-pdf-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-libs-32bit-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-tools-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"i586", reference:"xen-kmp-default-4.2.5_21_3.0.101_0.47.102-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"i586", reference:"xen-libs-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"i586", reference:"xen-tools-domU-4.2.5_21-44.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"i586", reference:"xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1")) 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-2017-8309
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8905
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9330
www.nessus.org/u?ba966bbf
bugzilla.suse.com/show_bug.cgi?id=1034845
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=1042931
bugzilla.suse.com/show_bug.cgi?id=1042938
www.suse.com/security/cve/CVE-2017-8309/
www.suse.com/security/cve/CVE-2017-8905/
www.suse.com/security/cve/CVE-2017-9330/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/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
84.7%