openSUSE: Security Advisory for xen (openSUSE-SU-2017:0007-1)

# 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("1.3.6.1.4.1.25623.1.0.851466");
  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:"2017-01-04 09:00:45 +0100 (Wed, 04 Jan 2017)");
  script_cve_id("CVE-2016-10013", "CVE-2016-10024", "CVE-2016-7777", "CVE-2016-7908",
                "CVE-2016-7909", "CVE-2016-7995", "CVE-2016-8576", "CVE-2016-8667",
                "CVE-2016-8669", "CVE-2016-8909", "CVE-2016-8910", "CVE-2016-9101",
                "CVE-2016-9377", "CVE-2016-9378", "CVE-2016-9379", "CVE-2016-9380",
                "CVE-2016-9381", "CVE-2016-9382", "CVE-2016-9383", "CVE-2016-9385",
                "CVE-2016-9386", "CVE-2016-9637", "CVE-2016-9776", "CVE-2016-9932");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/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:"2017-07-01 01:30:00 +0000 (Sat, 01 Jul 2017)");
  script_tag(name:"qod_type", value:"package");
  script_name("openSUSE: Security Advisory for xen (openSUSE-SU-2017:0007-1)");

  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 updates xen to version 4.5.5 to fix the following issues:

  - An unprivileged user in a guest could gain guest could escalate
  privilege to that of the guest kernel, if it had could invoke the
  instruction emulator. Only 64-bit x86 HVM guest were affected. Linux
  guest have not been vulnerable. (boo#1016340, CVE-2016-10013)

  - An unprivileged user in a 64 bit x86 guest could gain information from
  the host, crash the host or gain privilege of the host (boo#1009107,
  CVE-2016-9383)

  - An unprivileged guest process could (unintentionally or maliciously)
  obtain
  or ocorrupt sensitive information of other programs in the same guest.
  Only x86 HVM guests have been affected. The attacker needs to be able
  to trigger the Xen instruction emulator. (boo#1000106, CVE-2016-7777)

  - A guest on x86 systems could read small parts of hypervisor stack data
  (boo#1012651, CVE-2016-9932)

  - A malicious guest kernel could hang or crash the host system
  (boo#1014298, CVE-2016-10024)

  - The epro100 emulated network device caused a memory leak in the host
  when unplugged in the guest. A privileged user in the guest could use
  this to cause a DoS on the host or potentially crash the guest process
  on the host (boo#1013668, CVE-2016-9101)

  - The ColdFire Fast Ethernet Controller was vulnerable to an infinite loop
  that could be triggered by a privileged user in the guest, leading to DoS
  (boo#1013657, CVE-2016-9776)

  - A malicious guest administrator could escalate their privilege to that
  of the host. Only affects x86 HVM guests using qemu older version 1.6.0
  or using the qemu-xen-traditional. (boo#1011652, CVE-2016-9637)

  - An unprivileged guest user could escalate privilege to that of the guest
  administrator on x86 HVM guests, especially on Intel CPUs (boo#1009100,
  CVE-2016-9386)

  - An unprivileged guest user could escalate privilege to that of the guest
  administrator (on AMD CPUs) or crash the system (on Intel CPUs) on
  32-bit x86 HVM guests. Only guest operating systems that allowed a new
  task to start in VM86 mode were affected. (boo#1009103, CVE-2016-9382)

  - A malicious guest administrator could crash the host on x86 PV guests
  only (boo#1009104, CVE-2016-9385)

  - An unprivileged guest user was able to crash the guest. (boo#1009108,
  CVE-2016-9377, CVE-2016-9378)

  - A malicious guest administrator could get privilege of the host emulator
  process on x86 HVM guests. (boo#1009109, CVE-2016-9381)

  - A vulnerability in pygrub allowed a malicious guest administrator to
  obtain the contents of sensitive host files, or even delete those files
  (boo#1009111, CV ...

  Description truncated, please see the referenced URL(s) for more information.");

  script_tag(name:"affected", value:"xen on openSUSE Leap 42.1");

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

  script_xref(name:"openSUSE-SU", value:"2017:0007-1");
  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\.1");
  exit(0);
}

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

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

res = "";
report = "";

if(release == "openSUSELeap42.1") {
  if(!isnull(res = isrpmvuln(pkg:"xen-debugsource", rpm:"xen-debugsource~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default", rpm:"xen-kmp-default~4.5.5_06_k4.1.36_41~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default-debuginfo", rpm:"xen-kmp-default-debuginfo~4.5.5_06_k4.1.36_41~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo-32bit", rpm:"xen-libs-debuginfo-32bit~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.5.5_06~18.1", rls:"openSUSELeap42.1"))) {
    report += res;
  }

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

exit(0);