openSUSE: Security Advisory for xen (openSUSE-SU-2017:0665-1)

# 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("1.3.6.1.4.1.25623.1.0.851522");
  script_version("2023-11-03T05:05:46+0000");
  script_tag(name:"last_modification", value:"2023-11-03 05:05:46 +0000 (Fri, 03 Nov 2023)");
  script_tag(name:"creation_date", value:"2017-03-12 05:48:22 +0100 (Sun, 12 Mar 2017)");
  script_cve_id("CVE-2016-9921", "CVE-2016-9922", "CVE-2017-2615", "CVE-2017-2620");
  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-2017:0665-1)");

  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:

  - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine
  cirrus_bitblt_cputovideo failed to check the memory region, allowing for
  an out-of-bounds write that allows for privilege escalation
  (bsc#1024834).

  - CVE-2017-2615: An error in the bitblt copy operation could have allowed
  a malicious guest administrator to cause an out of bounds memory access,
  possibly leading to information disclosure or privilege escalation
  (bsc#1023004).

  - A malicious guest could have, by frequently rebooting over extended
  periods of time, run the host system out of memory, resulting in a
  Denial of Service (DoS) (bsc#1022871)

  - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
  to a divide by zero issue while copying VGA data. A privileged user
  inside guest could have used this flaw to crash the process instance on
  the host, resulting in DoS (bsc#1015169

  These non-security issues were fixed:

  - bsc#1000195: Prevent panic on CPU0 while booting on SLES 11 SP3

  - bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd

  - bsc#1005028: Fixed building Xen RPMs from Sources

  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:"2017:0665-1");
  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~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo-32bit", rpm:"xen-libs-debuginfo-32bit~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.7.1_06~9.2", rls:"openSUSELeap42.2"))) {
    report += res;
  }

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

exit(0);