openSUSE: Security Advisory for xen (openSUSE-SU-2017:1221-1)

# Copyright (C) 2017 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.851551");
  script_version("2021-09-15T13:01:45+0000");
  script_tag(name:"last_modification", value:"2021-09-15 13:01:45 +0000 (Wed, 15 Sep 2021)");
  script_tag(name:"creation_date", value:"2017-05-10 06:54:06 +0200 (Wed, 10 May 2017)");
  script_cve_id("CVE-2016-9603", "CVE-2017-7718");
  script_tag(name:"cvss_base", value:"9.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-09-07 10:29:00 +0000 (Fri, 07 Sep 2018)");
  script_tag(name:"qod_type", value:"package");
  script_name("openSUSE: Security Advisory for xen (openSUSE-SU-2017:1221-1)");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen'
  package(s) announced via the referenced advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"This update for xen fixes several issues.

  These security issues were fixed:

  - A malicious 64-bit PV guest may be able to access all of system memory,
  allowing for all of privilege escalation, host crashes, and information
  leaks by placing a IRET hypercall in the middle of a multicall batch
  (XSA-213, bsc#1034843)

  - A malicious pair of guests may be able to access all of system memory,
  allowing for all of privilege escalation, host crashes, and information
  leaks because of a missing check when transferring pages via
  GNTTABOP_transfer (XSA-214, bsc#1034844).

  - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS
  privileged users to cause a denial of service (out-of-bounds read and
  QEMU process crash) via vectors related to copying VGA data via the
  cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions
  (bsc#1034994).

  - CVE-2016-9603: A privileged user within the guest VM could have caused a
  heap overflow in the device model process, potentially escalating their
  privileges to that of the device model process (bsc#1028655)

  These non-security issues were fixed:

  - bsc#1029827: Additional xenstore patch

  - bsc#1036146: Xen VM dumped core to wrong path

  - bsc#1022703: Prevent Xen HVM guest with OVMF to hang with unattached
  CDRom

  This update was imported from the SUSE:SLE-12-SP2:Update update project.");

  script_tag(name:"affected", value:"xen on openSUSE Leap 42.2");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_xref(name:"openSUSE-SU", value:"2017:1221-1");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse", "ssh/login/rpms", re:"ssh/login/release=openSUSELeap42\.2");
  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "openSUSELeap42.2") {
  if(!isnull(res = isrpmvuln(pkg:"xen-debugsource", rpm:"xen-debugsource~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo-32bit", rpm:"xen-libs-debuginfo-32bit~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.7.2_04~11.6.1", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);