RedHat Update for tigervnc RHSA-2017:0630-01

# SPDX-FileCopyrightText: 2017 Greenbone AG
# 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-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.871777");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2017-03-22 05:48:10 +0100 (Wed, 22 Mar 2017)");
  script_cve_id("CVE-2016-10207", "CVE-2017-5581");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-01-05 02:31:00 +0000 (Fri, 05 Jan 2018)");
  script_tag(name:"qod_type", value:"package");
  script_name("RedHat Update for tigervnc RHSA-2017:0630-01");
  script_tag(name:"summary", value:"The remote host is missing an update for the 'tigervnc'
  package(s) announced via the referenced advisory.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"Virtual Network Computing (VNC) is a remote
display system which allows users to view a computing desktop environment not only
on the machine where it is running, but from anywhere on the Internet and from a
wide variety of machine architectures. TigerVNC is a suite of VNC servers and
clients. The tigervnc packages contain a client which allows users to connect to
other desktops running a VNC server.

Security Fix(es):

  * A denial of service flaw was found in the TigerVNC's Xvnc server. A
remote unauthenticated attacker could use this flaw to make Xvnc crash by
terminating the TLS handshake process early. (CVE-2016-10207)

  * A buffer overflow flaw, leading to memory corruption, was found in
TigerVNC viewer. A remote malicious VNC server could use this flaw to crash
the client vncviewer process resulting in denial of service.
(CVE-2017-5581)

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9
Technical Notes linked from the References section.");
  script_tag(name:"affected", value:"tigervnc on Red Hat Enterprise Linux Desktop (v. 6),
  Red Hat Enterprise Linux Server (v. 6),
  Red Hat Enterprise Linux Workstation (v. 6)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"RHSA", value:"2017:0630-01");
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2017-March/msg00045.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_6");

  exit(0);
}

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

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

res = "";

if(release == "RHENT_6")
{

  if ((res = isrpmvuln(pkg:"tigervnc", rpm:"tigervnc~1.1.0~24.el6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"tigervnc-debuginfo", rpm:"tigervnc-debuginfo~1.1.0~24.el6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"tigervnc-server", rpm:"tigervnc-server~1.1.0~24.el6", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}