openSUSE: Security Advisory for tigervnc (openSUSE-SU-2020:0087_1)

# Copyright (C) 2020 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("1.3.6.1.4.1.25623.1.0.853013");
  script_version("2021-08-12T14:00:53+0000");
  script_cve_id("CVE-2019-15691", "CVE-2019-15692", "CVE-2019-15693", "CVE-2019-15694", "CVE-2019-15695");
  script_tag(name:"cvss_base", value:"6.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2021-08-12 14:00:53 +0000 (Thu, 12 Aug 2021)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-01-21 22:15:00 +0000 (Tue, 21 Jan 2020)");
  script_tag(name:"creation_date", value:"2020-01-27 09:19:03 +0000 (Mon, 27 Jan 2020)");
  script_name("openSUSE: Security Advisory for tigervnc (openSUSE-SU-2020:0087_1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 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=openSUSELeap15\.1");

  script_xref(name:"openSUSE-SU", value:"2020:0087-1");
  script_xref(name:"URL", value:"https://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'tigervnc'
  package(s) announced via the openSUSE-SU-2020:0087-1 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 tigervnc fixes the following issues:

  - CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack
  memory in ZRLEDecoder (bsc#1159856).

  - CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode
  (bsc#1160250).

  - CVE-2019-15693: Fixed a heap-based buffer overflow in
  TightDecoder::FilterGradient (bsc#1159858).

  - CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper
  error handling in processing MemOutStream (bsc#1160251).

  - CVE-2019-15695: Fixed a stack-based buffer overflow, which could be
  triggered from CMsgReader::readSetCursor (bsc#1159860).

  This update was imported from the SUSE:SLE-15-SP1:Update update project.

  Patch Instructions:

  To install this openSUSE 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:

  - openSUSE Leap 15.1:

  zypper in -t patch openSUSE-2020-87=1");

  script_tag(name:"affected", value:"'tigervnc' package(s) on openSUSE Leap 15.1.");

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

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

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

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

res = "";
report = "";

if(release == "openSUSELeap15.1") {

  if(!isnull(res = isrpmvuln(pkg:"tigervnc-x11vnc", rpm:"tigervnc-x11vnc~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc-java", rpm:"xorg-x11-Xvnc-java~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc-novnc", rpm:"xorg-x11-Xvnc-novnc~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libXvnc-devel", rpm:"libXvnc-devel~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libXvnc1", rpm:"libXvnc1~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"libXvnc1-debuginfo", rpm:"libXvnc1-debuginfo~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"tigervnc", rpm:"tigervnc~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"tigervnc-debuginfo", rpm:"tigervnc-debuginfo~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"tigervnc-debugsource", rpm:"tigervnc-debugsource~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc", rpm:"xorg-x11-Xvnc~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc-debuginfo", rpm:"xorg-x11-Xvnc-debuginfo~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc-module", rpm:"xorg-x11-Xvnc-module~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xorg-x11-Xvnc-module-debuginfo", rpm:"xorg-x11-Xvnc-module-debuginfo~1.9.0~lp151.4.3.1", rls:"openSUSELeap15.1"))) {
    report += res;
  }

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

exit(0);