This update for xen fixes several issues. These security issues were fixed :
CVE-2016-7092: The get_page_from_l3e function in arch/x86/mm.c in Xen allowed local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables (bsc#995785)
CVE-2016-7093: Xen allowed local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation (bsc#995789)
CVE-2016-7094: Buffer overflow in Xen allowed local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update (bsc#995792)
CVE-2016-7154: Use-after-free vulnerability in the FIFO event channel code in Xen allowed local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number (bsc#997731)
CVE-2016-6836: VMWARE VMXNET3 NIC device allowed privileged user inside the guest to leak information. It occured while processing transmit(tx) queue, when it reaches the end of packet (bsc#994761)
CVE-2016-6888: A integer overflow int the VMWARE VMXNET3 NIC device support, during the initialisation of new packets in the device, could have allowed a privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994772)
CVE-2016-6833: A use-after-free issue in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994775)
CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC device support, causing an OOB read access (bsc#994625)
CVE-2016-6834: A infinite loop during packet fragmentation in the VMWARE VMXNET3 NIC device support allowed privileged user inside guest to crash the Qemu instance resulting in DoS (bsc#994421)
CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries (bsc#988675)
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-2016:2507-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(94038);
script_version("2.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");
script_cve_id("CVE-2016-6258", "CVE-2016-6833", "CVE-2016-6834", "CVE-2016-6835", "CVE-2016-6836", "CVE-2016-6888", "CVE-2016-7092", "CVE-2016-7093", "CVE-2016-7094", "CVE-2016-7154");
script_xref(name:"IAVB", value:"2016-B-0118-S");
script_xref(name:"IAVB", value:"2016-B-0140-S");
script_name(english:"SUSE SLES11 Security Update : xen (SUSE-SU-2016:2507-1) (Bunker Buster)");
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-2016-7092: The get_page_from_l3e function in
arch/x86/mm.c in Xen allowed local 32-bit PV guest OS
administrators to gain host OS privileges via vectors
related to L3 recursive pagetables (bsc#995785)
- CVE-2016-7093: Xen allowed local HVM guest OS
administrators to overwrite hypervisor memory and
consequently gain host OS privileges by leveraging
mishandling of instruction pointer truncation during
emulation (bsc#995789)
- CVE-2016-7094: Buffer overflow in Xen allowed local x86
HVM guest OS administrators on guests running with
shadow paging to cause a denial of service via a
pagetable update (bsc#995792)
- CVE-2016-7154: Use-after-free vulnerability in the FIFO
event channel code in Xen allowed local guest OS
administrators to cause a denial of service (host crash)
and possibly execute arbitrary code or obtain sensitive
information via an invalid guest frame number
(bsc#997731)
- CVE-2016-6836: VMWARE VMXNET3 NIC device allowed
privileged user inside the guest to leak information. It
occured while processing transmit(tx) queue, when it
reaches the end of packet (bsc#994761)
- CVE-2016-6888: A integer overflow int the VMWARE VMXNET3
NIC device support, during the initialisation of new
packets in the device, could have allowed a privileged
user inside guest to crash the Qemu instance resulting
in DoS (bsc#994772)
- CVE-2016-6833: A use-after-free issue in the VMWARE
VMXNET3 NIC device support allowed privileged user
inside guest to crash the Qemu instance resulting in DoS
(bsc#994775)
- CVE-2016-6835: Buffer overflow in the VMWARE VMXNET3 NIC
device support, causing an OOB read access (bsc#994625)
- CVE-2016-6834: A infinite loop during packet
fragmentation in the VMWARE VMXNET3 NIC device support
allowed privileged user inside guest to crash the Qemu
instance resulting in DoS (bsc#994421)
- CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in
Xen allowed local 32-bit PV guest OS administrators to
gain host OS privileges by leveraging fast-paths for
updating pagetable entries (bsc#988675)
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=966467"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=970135"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=971949"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=988675"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=990970"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=991934"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=992224"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=993507"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994136"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994421"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994625"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994761"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994772"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=994775"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=995785"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=995789"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=995792"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=997731"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6258/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6833/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6834/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6835/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6836/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-6888/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-7092/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-7093/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-7094/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2016-7154/"
);
# https://www.suse.com/support/update/announcement/2016/suse-su-20162507-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?181aa488"
);
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 Software Development Kit 11-SP4:zypper in -t
patch sdksp4-xen-12782=1
SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-xen-12782=1
SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch
dbgsp4-xen-12782=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:L/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: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-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:"2016/08/02");
script_set_attribute(attribute:"patch_publication_date", value:"2016/10/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/13");
script_set_attribute(attribute:"in_the_news", value:"true");
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) 2016-2021 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:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-kmp-default-4.4.4_08_3.0.101_80-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-libs-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-doc-html-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-tools-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"xen-kmp-pae-4.4.4_08_3.0.101_80-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-kmp-default-4.4.4_08_3.0.101_80-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-libs-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-tools-domU-4.4.4_08-40.2")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"i586", reference:"xen-kmp-pae-4.4.4_08_3.0.101_80-40.2")) 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");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | xen | p-cpe:/a:novell:suse_linux:xen |
novell | suse_linux | xen-doc-html | p-cpe:/a:novell:suse_linux:xen-doc-html |
novell | suse_linux | xen-kmp-default | p-cpe:/a:novell:suse_linux:xen-kmp-default |
novell | suse_linux | xen-kmp-pae | p-cpe:/a:novell:suse_linux:xen-kmp-pae |
novell | suse_linux | xen-libs | p-cpe:/a:novell:suse_linux:xen-libs |
novell | suse_linux | xen-tools | p-cpe:/a:novell:suse_linux:xen-tools |
novell | suse_linux | xen-tools-domu | p-cpe:/a:novell:suse_linux:xen-tools-domu |
novell | suse_linux | 11 | cpe:/o:novell:suse_linux:11 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6258
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6833
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6834
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6835
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6836
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6888
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7092
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7093
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7094
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7154
www.nessus.org/u?181aa488
bugzilla.suse.com/show_bug.cgi?id=966467
bugzilla.suse.com/show_bug.cgi?id=970135
bugzilla.suse.com/show_bug.cgi?id=971949
bugzilla.suse.com/show_bug.cgi?id=988675
bugzilla.suse.com/show_bug.cgi?id=990970
bugzilla.suse.com/show_bug.cgi?id=991934
bugzilla.suse.com/show_bug.cgi?id=992224
bugzilla.suse.com/show_bug.cgi?id=993507
bugzilla.suse.com/show_bug.cgi?id=994136
bugzilla.suse.com/show_bug.cgi?id=994421
bugzilla.suse.com/show_bug.cgi?id=994625
bugzilla.suse.com/show_bug.cgi?id=994761
bugzilla.suse.com/show_bug.cgi?id=994772
bugzilla.suse.com/show_bug.cgi?id=994775
bugzilla.suse.com/show_bug.cgi?id=995785
bugzilla.suse.com/show_bug.cgi?id=995789
bugzilla.suse.com/show_bug.cgi?id=995792
bugzilla.suse.com/show_bug.cgi?id=997731
www.suse.com/security/cve/CVE-2016-6258/
www.suse.com/security/cve/CVE-2016-6833/
www.suse.com/security/cve/CVE-2016-6834/
www.suse.com/security/cve/CVE-2016-6835/
www.suse.com/security/cve/CVE-2016-6836/
www.suse.com/security/cve/CVE-2016-6888/
www.suse.com/security/cve/CVE-2016-7092/
www.suse.com/security/cve/CVE-2016-7093/
www.suse.com/security/cve/CVE-2016-7094/
www.suse.com/security/cve/CVE-2016-7154/