Vulnerabilities > CVE-2018-5683 - Out-of-bounds Read vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0238.
#

include("compat.inc");

if (description)
{
  script_id(111023);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/27 13:00:35");

  script_cve_id("CVE-2016-9603", "CVE-2017-13672", "CVE-2017-15289", "CVE-2017-2633", "CVE-2017-5715", "CVE-2017-7718", "CVE-2017-7980", "CVE-2018-3639", "CVE-2018-5683", "CVE-2018-7858");

  script_name(english:"OracleVM 3.4 : qemu-kvm (OVMSA-2018-0238) (Spectre)");
  script_summary(english:"Checks the RPM output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  -
    qemu-kvm-i386-define-the-ssbd-CPUID-feature-bit-CVE-2018
    -3639.patch 

  -
    qemu-kvm-i386-Define-the-Virt-SSBD-MSR-and-handling-of-i
    t-CVE.patch 

  -
    qemu-kvm-i386-define-the-AMD-virt-ssbd-CPUID-feature-bit
    -CVE-.patch 

  - Resolves: bz#1574074 (CVE-2018-3639 qemu-kvm: hw: cpu:
    speculative store bypass [rhel-6.10.z])

  - kvm-vga-add-share_surface-flag.patch [bz#1553674]

  - kvm-vga-add-sanity-checks.patch [bz#1553674]

  - Resolves: bz#1553674 (CVE-2018-7858 qemu-kvm: Qemu:
    cirrus: OOB access when updating vga display [rhel-6])

  - kvm-target-i386-add-support-for-SPEC_CTRL-MSR.patch
    [bz#1525939 bz#1528024]

  -
    kvm-target-i386-cpu-add-new-CPUID-bits-for-indirect-bran
    .patch 

  -
    kvm-target-i386-cpu-add-new-CPU-models-for-indirect-bran
    .patch 

  -
    kvm-cirrus-fix-oob-access-in-mode4and5-write-functions.p
    atch [bz#1501298]

  -
    kvm-vga-stop-passing-pointers-to-vga_draw_line-functions
    .patch 

  -
    kvm-vga-check-the-validation-of-memory-addr-when-draw-te
    .patch 

  - Resolves: bz#1486641 (CVE-2017-13672 qemu-kvm-rhev:
    Qemu: vga: OOB read access during display update
    [rhel-6.10])

  - Resolves: bz#1501298 (CVE-2017-15289 qemu-kvm: Qemu:
    cirrus: OOB access issue in mode4and5 write functions
    [rhel-6.10])

  - Resolves: bz#1525939 (CVE-2017-5715 qemu-kvm: hw: cpu:
    speculative execution branch target injection
    [rhel-6.10])

  - Resolves: bz#1528024 (CVE-2017-5715 qemu-kvm-rhev: hw:
    cpu: speculative execution branch target injection
    [rhel-6.10])

  - Resolves: bz#1534692 (CVE-2018-5683 qemu-kvm: Qemu:
    Out-of-bounds read in vga_draw_text routine [rhel-6.10])

  - Resolves: bz#1549152 (qemu-kvm-rhev: remove unused patch
    file [rhel-6.10])

  - kvm-vns-tls-don-t-use-depricated-gnutls-functions.patch
    [bz#1428750]

  - kvm-vnc-apply-display-size-limits.patch [bz#1430616
    bz#1430617]

  -
    kvm-fix-cirrus_vga-fix-OOB-read-case-qemu-Segmentation-f
    .patch 

  -
    kvm-cirrus-vnc-zap-bitblit-support-from-console-code.pat
    ch [bz#1443448 bz#1443450 bz#1447542 bz#1447545]

  - kvm-cirrus-avoid-write-only-variables.patch [bz#1444378
    bz#1444380]

  -
    kvm-cirrus-stop-passing-around-dst-pointers-in-the-blitt
    .patch 

  -
    kvm-cirrus-stop-passing-around-src-pointers-in-the-blitt
    .patch 

  -
    kvm-cirrus-fix-off-by-one-in-cirrus_bitblt_rop_bkwd_tran
    .patch 

  - kvm-cirrus-fix-PUTPIXEL-macro.patch [bz#1444378
    bz#1444380]

  - Resolves: bz#1428750 (Fails to build in brew)

  - Resolves: bz#1430616 (CVE-2017-2633 qemu-kvm: Qemu: VNC:
    memory corruption due to unchecked resolution limit
    [rhel-6.10])

  - Resolves: bz#1430617 (CVE-2017-2633 qemu-kvm-rhev: Qemu:
    VNC: memory corruption due to unchecked resolution limit
    [rhel-6.10])

  - Resolves: bz#1443448 (CVE-2017-7718 qemu-kvm: Qemu:
    display: cirrus: OOB read access issue [rhel-6.10])

  - Resolves: bz#1443450 (CVE-2017-7718 qemu-kvm-rhev: Qemu:
    display: cirrus: OOB read access issue [rhel-6.10])

  - Resolves: bz#1444378 (CVE-2017-7980 qemu-kvm: Qemu:
    display: cirrus: OOB r/w access issues in bitblt
    routines [rhel-6.10])

  - Resolves: bz#1444380 (CVE-2017-7980 qemu-kvm-rhev: Qemu:
    display: cirrus: OOB r/w access issues in bitblt
    routines [rhel-6.10])

  - Resolves: bz#1447542 (CVE-2016-9603 qemu-kvm: Qemu:
    cirrus: heap buffer overflow via vnc connection
    [rhel-6.10])

  - Resolves: bz#1447545 (CVE-2016-9603 qemu-kvm-rhev: Qemu:
    cirrus: heap buffer overflow via vnc connection
    [rhel-6.10])"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-July/000873.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected qemu-img package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC: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_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:qemu-img");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/04/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/12");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"OVS3.4", reference:"qemu-img-0.12.1.2-2.506.el6_10.1")) 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, "qemu-img");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0609-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(107144);
  script_version("3.7");
  script_cvs_date("Date: 2019/09/10 13:51:47");

  script_cve_id("CVE-2017-15595", "CVE-2017-17563", "CVE-2017-17564", "CVE-2017-17565", "CVE-2017-17566", "CVE-2017-18030", "CVE-2017-5715", "CVE-2017-5753", "CVE-2017-5754", "CVE-2018-5683");
  script_xref(name:"IAVA", value:"2018-A-0019");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2018:0609-1) (Meltdown) (Spectre)");
  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-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent
    information leaks via side effects of speculative
    execution, aka 'Spectre' and 'Meltdown' attacks
    (bsc#1074562, bsc#1068032)

  - CVE-2018-5683: The vga_draw_text function allowed local
    OS guest privileged users to cause a denial of service
    (out-of-bounds read and QEMU process crash) by
    leveraging improper memory address validation
    (bsc#1076116).

  - CVE-2017-18030: The cirrus_invalidate_region function
    allowed local OS guest privileged users to cause a
    denial of service (out-of-bounds array access and QEMU
    process crash) via vectors related to negative pitch
    (bsc#1076180).

  - CVE-2017-15595: x86 PV guest OS users were able to cause
    a DoS (unbounded recursion, stack consumption, and
    hypervisor crash) or possibly gain privileges via
    crafted page-table stacking (bsc#1061081)

  - CVE-2017-17566: Prevent PV guest OS users to cause a
    denial of service (host OS crash) or gain host OS
    privileges in shadow mode by mapping a certain auxiliary
    page (bsc#1070158).

  - CVE-2017-17563: Prevent guest OS users to cause a denial
    of service (host OS crash) or gain host OS privileges by
    leveraging an incorrect mask for reference-count
    overflow checking in shadow mode (bsc#1070159).

  - CVE-2017-17564: Prevent guest OS users to cause a denial
    of service (host OS crash) or gain host OS privileges by
    leveraging incorrect error handling for reference
    counting in shadow mode (bsc#1070160).

  - CVE-2017-17565: Prevent PV guest OS users to cause a
    denial of service (host OS crash) if shadow mode and
    log-dirty mode are in place, because of an incorrect
    assertion related to M2P (bsc#1070163).

  - Added missing intermediate preemption checks for guest
    requesting removal of memory. This allowed malicious
    guest administrator to cause denial of service due to
    the high cost of this operation (bsc#1080635).

  - Because of XEN not returning the proper error messages
    when transitioning grant tables from v2 to v1 a
    malicious guest was able to cause DoS or potentially
    allowed for privilege escalation as well as information
    leaks (bsc#1080662).

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=1035442"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1061081"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070158"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070159"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070160"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070163"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074562"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076116"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076180"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1080635"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1080662"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-15595/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17563/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17564/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17565/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17566/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18030/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5715/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5753/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5754/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-5683/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180609-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4b57cd44"
  );
  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-6-2018-415=1

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2018-415=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2018-415=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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  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:"2017/10/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/03/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/06");
  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) 2018-2019 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_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-debugsource-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-doc-html-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-4.5.5_24_k3.12.74_60.64.82-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-kmp-default-debuginfo-4.5.5_24_k3.12.74_60.64.82-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-32bit-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-libs-debuginfo-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-debuginfo-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-4.5.5_24-22.43.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.5.5_24-22.43.1")) 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");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3575-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(106927);
  script_version("3.7");
  script_cvs_date("Date: 2019/09/18 12:31:48");

  script_cve_id("CVE-2017-11334", "CVE-2017-13672", "CVE-2017-14167", "CVE-2017-15038", "CVE-2017-15118", "CVE-2017-15119", "CVE-2017-15124", "CVE-2017-15268", "CVE-2017-15289", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18043", "CVE-2018-5683");
  script_xref(name:"USN", value:"3575-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : qemu vulnerabilities (USN-3575-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that QEMU incorrectly handled guest ram. A
privileged attacker inside the guest could use this issue to cause
QEMU to crash, resulting in a denial of service. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-11334)

David Buchanan discovered that QEMU incorrectly handled the VGA
device. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. This issue was
only addressed in Ubuntu 17.10. (CVE-2017-13672)

Thomas Garnier discovered that QEMU incorrectly handled multiboot. An
attacker could use this issue to cause QEMU to crash, resulting in a
denial of service, or possibly execute arbitrary code on the host. In
the default installation, when QEMU is used with libvirt, attackers
would be isolated by the libvirt AppArmor profile. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-14167)

Tuomas Tynkkynen discovered that QEMU incorrectly handled VirtFS
directory sharing. An attacker could use this issue to obtain
sensitive information from host memory. (CVE-2017-15038)

Eric Blake discovered that QEMU incorrectly handled memory in the NBD
server. An attacker could use this issue to cause the NBD server to
crash, resulting in a denial of service. This issue only affected
Ubuntu 17.10. (CVE-2017-15118)

Eric Blake discovered that QEMU incorrectly handled certain options to
the NBD server. An attacker could use this issue to cause the NBD
server to crash, resulting in a denial of service. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-15119)

Daniel Berrange discovered that QEMU incorrectly handled the VNC
server. A remote attacker could possibly use this issue to consume
memory, resulting in a denial of service. This issue was only
addressed in Ubuntu 17.10. (CVE-2017-15124)

Carl Brassey discovered that QEMU incorrectly handled certain
websockets. A remote attacker could possibly use this issue to consume
memory, resulting in a denial of service. This issue only affected
Ubuntu 17.10. (CVE-2017-15268)

Guoxiang Niu discovered that QEMU incorrectly handled the Cirrus VGA
device. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service.
(CVE-2017-15289)

Cyrille Chatras discovered that QEMU incorrectly handled certain PS2
values during migration. An attacker could possibly use this issue to
cause QEMU to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 17.10. (CVE-2017-16845)

It was discovered that QEMU incorrectly handled the Virtio Vring
implementation. An attacker could possibly use this issue to cause
QEMU to crash, resulting in a denial of service. This issue only
affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-17381)

Eric Blake discovered that QEMU incorrectly handled certain rounding
operations. An attacker could possibly use this issue to cause QEMU to
crash, resulting in a denial of service. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-18043)

Jiang Xin and Lin ZheCheng discovered that QEMU incorrectly handled
the VGA device. A privileged attacker inside the guest could use this
issue to cause QEMU to crash, resulting in a denial of service.
(CVE-2018-5683).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/3575-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-arm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-mips");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-misc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-ppc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-s390x");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-sparc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:qemu-system-x86");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|16\.04|17\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 17.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"qemu-system", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-aarch64", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-arm", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-mips", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-misc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-ppc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-sparc", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"qemu-system-x86", pkgver:"2.0.0+dfsg-2ubuntu1.39")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-aarch64", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-arm", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-mips", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-misc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-ppc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-s390x", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-sparc", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"qemu-system-x86", pkgver:"1:2.5+dfsg-5ubuntu10.22")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-aarch64", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-arm", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-mips", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-misc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-ppc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-s390x", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-sparc", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"qemu-system-x86", pkgver:"1:2.10+dfsg-0ubuntu3.5")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-system / qemu-system-aarch64 / qemu-system-arm / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2018-1034.
#

include("compat.inc");

if (description)
{
  script_id(110457);
  script_version("1.2");
  script_cvs_date("Date: 2019/04/05 23:25:05");

  script_cve_id("CVE-2017-13672", "CVE-2017-13711", "CVE-2017-15124", "CVE-2017-15268", "CVE-2018-3639", "CVE-2018-5683", "CVE-2018-7858");
  script_xref(name:"ALAS", value:"2018-1034");

  script_name(english:"Amazon Linux AMI : qemu-kvm (ALAS-2018-1034) (Spectre)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An out-of-bounds read access issue was found in the VGA display
emulator built into the Quick emulator (QEMU). It could occur while
reading VGA memory to update graphics display. A privileged
user/process inside guest could use this flaw to crash the QEMU
process on the host resulting in denial of service
situation.(CVE-2017-13672)

A memory leakage issue was found in the I/O channels websockets
implementation of the Quick Emulator (QEMU). It could occur while
sending screen updates to a client, which is slow to read and process
them further. A privileged guest user could use this flaw to cause a
denial of service on the host and/or potentially crash the QEMU
process instance on the host.(CVE-2017-15268)

A use-after-free issue was found in the Slirp networking
implementation of the Quick emulator (QEMU). It occurs when a Socket
referenced from multiple packets is freed while responding to a
message. A user/process could use this flaw to crash the QEMU process
on the host resulting in denial of service.(CVE-2017-13711 )

Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA
Emulator support, allows local guest OS privileged users to cause a
denial of service (out-of-bounds access and QEMU process crash) by
leveraging incorrect region calculation when updating VGA
display.(CVE-2018-7858)

VNC server implementation in Quick Emulator (QEMU) was found to be
vulnerable to an unbounded memory allocation issue, as it did not
throttle the framebuffer updates sent to its client. If the client did
not consume these updates, VNC server allocates growing memory to hold
onto this data. A malicious remote VNC client could use this flaw to
cause DoS to the server host.(CVE-2017-15124)

An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store
instructions (a commonly used performance optimization). It relies on
the presence of a precisely-defined instruction sequence in the
privileged code as well as the fact that memory read from address to
which a recent memory write has occurred may see an older value and
subsequently cause an update into the microprocessor's data cache even
for speculatively executed instructions that never actually commit
(retire). As a result, an unprivileged attacker could use this flaw to
read privileged memory by conducting targeted cache side-channel
attacks.(CVE-2018-3639)

An out-of-bounds read access issue was found in the VGA emulator of
QEMU. It could occur in vga_draw_text routine, while updating display
area for a vnc client. A privileged user inside a guest could use this
flaw to crash the QEMU process resulting in DoS.(CVE-2018-5683)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2018-1034.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update qemu-kvm' to update your system."
  );
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/08");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", cpu:"x86_64", reference:"qemu-img-1.5.3-156.8.amzn1")) flag++;
if (rpm_check(release:"ALA", cpu:"x86_64", reference:"qemu-kvm-1.5.3-156.8.amzn1")) flag++;
if (rpm_check(release:"ALA", cpu:"x86_64", reference:"qemu-kvm-common-1.5.3-156.8.amzn1")) flag++;
if (rpm_check(release:"ALA", cpu:"x86_64", reference:"qemu-kvm-debuginfo-1.5.3-156.8.amzn1")) flag++;
if (rpm_check(release:"ALA", cpu:"x86_64", reference:"qemu-kvm-tools-1.5.3-156.8.amzn1")) 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, "qemu-img / qemu-kvm / qemu-kvm-common / qemu-kvm-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:1077-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(109358);
  script_version("1.7");
  script_cvs_date("Date: 2019/09/10 13:51:47");

  script_cve_id("CVE-2017-18030", "CVE-2017-5715", "CVE-2018-5683", "CVE-2018-7550");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"SUSE SLES11 Security Update : kvm (SUSE-SU-2018:1077-1) (Spectre)");
  script_summary(english:"Checks rpm output for the updated package.");

  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 kvm fixes the following issues :

  - This update has the next round of Spectre v2 related
    patches, which now integrates with corresponding changes
    in libvirt. A January 2018 release of qemu initially
    addressed the Spectre v2 vulnerability for KVM guests by
    exposing the spec-ctrl feature for all x86 vcpu types,
    which was the quick and dirty approach, but not the
    proper solution. We remove that initial patch and now
    rely on patches from upstream. This update defines
    spec_ctrl and ibpb cpu feature flags as well as new cpu
    models which are clones of existing models with either
    -IBRS or -IBPB added to the end of the model name. These
    new vcpu models explicitly include the new feature(s),
    whereas the feature flags can be added to the cpu
    parameter as with other features. In short, for
    continued Spectre v2 protection, ensure that either the
    appropriate cpu feature flag is added to the QEMU
    command-line, or one of the new cpu models is used.
    Although migration from older versions is supported, the
    new cpu features won't be properly exposed to the guest
    until it is restarted with the cpu features explicitly
    added. A reboot is insufficient.

  - A warning patch is added which attempts to detect a
    migration from a qemu version which had the quick and
    dirty fix (it only detects certain cases, but hopefully
    is helpful.) For additional information on Spectre v2 as
    it relates to QEMU, see:
    https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-
    update/ (CVE-2017-5715 bsc#1068032)

  - A patch is added to continue to detect Spectre v2
    mitigation features (as shown by cpuid), and if found
    provide that feature to guests, even if running on older
    KVM (kernel) versions which do not yet expose that
    feature to QEMU. (bsc#1082276) These two patches will be
    removed when we can reasonably assume everyone is
    running with the appropriate updates.

  - Security fixes for the following CVE issues:
    (bsc#1076114 CVE-2018-5683) (bsc#1083291 CVE-2018-7550)

  - This patch is already included, add here for CVE track
    (bsc#1076179 CVE-2017-18030)

  - Toolchain changes have cause the built size of
    pxe-virtio.rom to exceed 64K. Tweak rarely used strings
    in code to reduce size of the binary so it fits again.

  - Eliminate bogus use of CPUID_7_0_EDX_PRED_CMD which
    we've carried since the initial Spectre v2 patch was
    added. EDX bit 27 of CPUID Leaf 07H, Sub-leaf 0 provides
    status on STIBP, and not the PRED_CMD MSR. Exposing the
    STIBP CPUID feature bit to the guest is wrong in
    general, since the VM doesn't directly control the
    scheduling of physical hyperthreads. This is left
    strictly to the L0 hypervisor.

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=1068032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076114"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076179"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1082276"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1083291"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18030/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5715/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-5683/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-7550/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20181077-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?39c75625"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch
slessp4-kvm-13571=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kvm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/26");
  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) 2018-2019 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);

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", reference:"kvm-1.4.2-60.9.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kvm");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0831-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(108686);
  script_version("1.7");
  script_cvs_date("Date: 2019/09/10 13:51:47");

  script_cve_id("CVE-2017-15119", "CVE-2017-15124", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18030", "CVE-2017-18043", "CVE-2017-5715", "CVE-2018-5683", "CVE-2018-7550");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:0831-1) (Spectre)");
  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 qemu fixes the following issues: This update has the
next round of Spectre v2 related patches, which now integrate with
corresponding changes in libvirt. (CVE-2017-5715 bsc#1068032) The
January 2018 release of qemu initially addressed the Spectre v2
vulnerability for KVM guests by exposing the spec-ctrl feature for all
x86 vcpu types, which was the quick and dirty approach, but not the
proper solution. We replaced our initial patch by the patches from
upstream. This update defines spec_ctrl and ibpb cpu feature flags as
well as new cpu models which are clones of existing models with either
-IBRS or -IBPB added to the end of the model name. These new vcpu
models explicitly include the new feature(s), whereas the feature
flags can be added to the cpu parameter as with other features. In
short, for continued Spectre v2 protection, ensure that either the
appropriate cpu feature flag is added to the QEMU command-line, or one
of the new cpu models is used. Although migration from older versions
is supported, the new cpu features won't be properly exposed to the
guest until it is restarted with the cpu features explicitly added. A
reboot is insufficient. A warning patch is added which attempts to
detect a migration from a qemu version which had the quick and dirty
fix (it only detects certain cases, but hopefully is helpful.) For
additional information on Spectre v2 as it relates to QEMU, see:
https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/ A
patch is added to continue to detect Spectre v2 mitigation features
(as shown by cpuid), and if found provide that feature to guests, even
if running on older KVM (kernel) versions which do not yet expose that
feature to QEMU. (bsc#1082276) These two patches will be removed when
we can reasonably assume everyone is running with the appropriate
updates. Also security fixes for the following CVE issues are 
included :

  - CVE-2017-15119: The Network Block Device (NBD) server in
    Quick Emulator (QEMU), was vulnerable to a denial of
    service issue. It could occur if a client sent large
    option requests, making the server waste CPU time on
    reading up to 4GB per request. A client could use this
    flaw to keep the NBD server from serving other requests,
    resulting in DoS. (bsc#1070144)

  - CVE-2017-15124: VNC server implementation in Quick
    Emulator (QEMU) was found to be vulnerable to an
    unbounded memory allocation issue, as it did not
    throttle the framebuffer updates sent to its client. If
    the client did not consume these updates, VNC server
    allocates growing memory to hold onto this data. A
    malicious remote VNC client could use this flaw to cause
    DoS to the server host. (bsc#1073489)

  - CVE-2017-16845: The PS2 driver in Qemu did not validate
    'rptr' and 'count' values during guest migration,
    leading to out-of-bounds access. (bsc#1068613)

  - CVE-2017-17381: The Virtio Vring implementation in QEMU
    allowed local OS guest users to cause a denial of
    service (divide-by-zero error and QEMU process crash) by
    unsetting vring alignment while updating Virtio rings.
    (bsc#1071228)

  - CVE-2017-18030: A problem in the Cirrus driver in Qemu
    allowed local OS guest privileged users to cause a
    denial of service (out-of-bounds array access and QEMU
    process crash) via vectors related to negative pitch.
    (bsc#1076179)

  - CVE-2017-18043: Integer overflow in the macro ROUND_UP
    (n, d) in Quick Emulator (Qemu) allowed a user to cause
    a denial of service (Qemu process crash). (bsc#1076775)

  - CVE-2018-5683: The VGA driver in Qemu allowed local OS
    guest privileged users to cause a denial of service
    (out-of-bounds read and QEMU process crash) by
    leveraging improper memory address validation.
    (bsc#1076114)

  - CVE-2018-7550: The multiboot functionality in Quick
    Emulator (aka QEMU) allowed local guest OS users to
    execute arbitrary code on the QEMU host via an
    out-of-bounds read or write memory access. (bsc#1083291)
    Also the following bugs were fixed :

  - Eliminate bogus use of CPUID_7_0_EDX_PRED_CMD which
    we've carried since the initial Spectre v2 patch was
    added. EDX bit 27 of CPUID Leaf 07H, Sub-leaf 0 provides
    status on STIBP, and not the PRED_CMD MSR. Exposing the
    STIBP CPUID feature bit to the guest is wrong in
    general, since the VM doesn't directly control the
    scheduling of physical hyperthreads. This is left
    strictly to the L0 hypervisor.

  - Spectre fixes for IBM Z series by providing more hw
    features to guests (bsc#1076814)

  - Pre-add group kvm for qemu-tools (bsc#1040202)

  - the qemu-tools package also needs a prerequire of group
    management tools, from the shadow package. (bsc#1085598)

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=1040202"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068613"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070144"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1071228"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1073489"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076114"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076179"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076775"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076814"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1082276"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1083291"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1085598"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.qemu.org/2018/02/14/qemu-2-11-1-and-spectre-update/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-15119/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-15124/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-16845/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17381/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18030/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18043/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5715/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-5683/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-7550/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180831-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?788addb9"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2018-555=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-555=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2018-555=1"
  );
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/28");
  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) 2018-2019 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-block-rbd-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"qemu-x86-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"s390x", reference:"qemu-s390-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"s390x", reference:"qemu-s390-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-curl-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-curl-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-ssh-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-block-ssh-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-debugsource-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-guest-agent-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-guest-agent-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-lang-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-tools-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-tools-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"qemu-kvm-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-block-curl-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-debugsource-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-kvm-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-tools-debuginfo-2.6.2-41.37.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"qemu-x86-2.6.2-41.37.1")) 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, "qemu");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1104. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(109070);
  script_version("1.9");
  script_cvs_date("Date: 2019/10/24 15:35:44");

  script_cve_id("CVE-2017-13672", "CVE-2017-13673", "CVE-2017-13711", "CVE-2017-15118", "CVE-2017-15119", "CVE-2017-15124", "CVE-2017-15268", "CVE-2018-5683");
  script_xref(name:"RHSA", value:"2018:1104");

  script_name(english:"RHEL 7 : Virtualization (RHSA-2018:1104)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for qemu-kvm-rhev is now available for Red Hat
Virtualization 4 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on a variety of architectures. The qemu-kvm-rhev packages
provide the user-space component for running virtual machines that use
KVM in environments managed by Red Hat products.

The following packages have been upgraded to a later upstream version:
qemu-kvm-rhev (2.10.0). (BZ#1470749)

Security Fix(es) :

* Qemu: stack-based buffer overflow in NBD server triggered via long
export name (CVE-2017-15118)

* Qemu: DoS via large option request (CVE-2017-15119)

* Qemu: vga: OOB read access during display update (CVE-2017-13672)

* Qemu: vga: reachable assert failure during display update
(CVE-2017-13673)

* Qemu: Slirp: use-after-free when sending response (CVE-2017-13711)

* Qemu: memory exhaustion through framebuffer update request message
in VNC server (CVE-2017-15124)

* Qemu: I/O: potential memory exhaustion via websock connection to VNC
(CVE-2017-15268)

* Qemu: Out-of-bounds read in vga_draw_text routine (CVE-2018-5683)

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Red Hat would like to thank David Buchanan for reporting
CVE-2017-13672 and CVE-2017-13673; Wjjzhang (Tencent.com) for
reporting CVE-2017-13711; and Jiang Xin and Lin ZheCheng for reporting
CVE-2018-5683. The CVE-2017-15118 and CVE-2017-15119 issues were
discovered by Eric Blake (Red Hat) and the CVE-2017-15124 issue was
discovered by Daniel Berrange (Red Hat)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2018:1104"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-13672"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-13673"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-13711"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15118"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15119"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15124"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15268"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-5683"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-img-rhev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common-rhev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-rhev-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools-rhev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2018:1104";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;

  if (! (rpm_exists(release:"RHEL7", rpm:"qemu-kvm-rhev-2.10.0"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "Virtualization");

  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-img-rhev-2.10.0-21.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-common-rhev-2.10.0-21.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-rhev-2.10.0-21.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-rhev-debuginfo-2.10.0-21.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"qemu-kvm-tools-rhev-2.10.0-21.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-img-rhev / qemu-kvm-common-rhev / qemu-kvm-rhev / etc");
  }
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(110865);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04");

  script_cve_id(
    "CVE-2017-13672",
    "CVE-2017-13711",
    "CVE-2017-15124",
    "CVE-2017-15268",
    "CVE-2018-3639",
    "CVE-2018-5683",
    "CVE-2018-7858"
  );

  script_name(english:"EulerOS 2.0 SP3 : qemu-kvm (EulerOS-SA-2018-1201)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the qemu-kvm packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - QEMU (aka Quick Emulator), when built with the VGA
    display emulator support, allows local guest OS
    privileged users to cause a denial of service
    (out-of-bounds read and QEMU process crash) via vectors
    involving display update.(CVE-2017-13672)

  - Use-after-free vulnerability in the sofree function in
    slirp/socket.c in QEMU (aka Quick Emulator) allows
    attackers to cause a denial of service (QEMU instance
    crash) by leveraging failure to properly clear ifq_so
    from pending packets.(CVE-2017-13711)

  - VNC server implementation in Quick Emulator (QEMU)
    2.11.0 and older was found to be vulnerable to an
    unbounded memory allocation issue, as it did not
    throttle the framebuffer updates sent to its client. If
    the client did not consume these updates, VNC server
    allocates growing memory to hold onto this data. A
    malicious remote VNC client could use this flaw to
    cause DoS to the server host.(CVE-2017-15124)

  - Qemu through 2.10.0 allows remote attackers to cause a
    memory leak by triggering slow data-channel read
    operations, related to
    io/channel-websock.c.(CVE-2017-15268)

  - The vga_draw_text function in Qemu allows local OS
    guest privileged users to cause a denial of service
    (out-of-bounds read and QEMU process crash) by
    leveraging improper memory address
    validation.(CVE-2018-5683)

  - An industry-wide issue was found in the way many modern
    microprocessor designs have implemented speculative
    execution of Load i1/4+ Store instructions (a commonly
    used performance optimization). It relies on the
    presence of a precisely-defined instruction sequence in
    the privileged code as well as the fact that memory
    read from address to which a recent memory write has
    occurred may see an older value and subsequently cause
    an update into the microprocessor's data cache even for
    speculatively executed instructions that never actually
    commit (retire). As a result, an unprivileged attacker
    could use this flaw to read privileged memory by
    conducting targeted cache side-channel attacks.
    (CVE-2018-3639)

  - Quick Emulator (aka QEMU), when built with the Cirrus
    CLGD 54xx VGA Emulator support, allows local guest OS
    privileged users to cause a denial of service
    (out-of-bounds access and QEMU process crash) by
    leveraging incorrect region calculation when updating
    VGA display.(CVE-2018-7858)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2018-1201
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f82cacb");
  script_set_attribute(attribute:"solution", value:
"Update the affected qemu-kvm packages.");
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:qemu-kvm-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["qemu-img-1.5.3-156.2.h2",
        "qemu-kvm-1.5.3-156.2.h2",
        "qemu-kvm-common-1.5.3-156.2.h2"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "qemu-kvm");
}