Vulnerabilities > CVE-2017-2835 - Out-of-bounds Write vulnerability in multiple products

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2017-ed31e1f941.
#

include("compat.inc");

if (description)
{
  script_id(102277);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2017-2834", "CVE-2017-2835", "CVE-2017-2836", "CVE-2017-2837", "CVE-2017-2838", "CVE-2017-2839");
  script_xref(name:"FEDORA", value:"2017-ed31e1f941");

  script_name(english:"Fedora 25 : 2:freerdp / remmina (2017-ed31e1f941)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Update to latest snapshot that contains fixes for the latest Talos
discovered CVEs.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2017-ed31e1f941"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected 2:freerdp and / or remmina packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:2:freerdp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:remmina");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:25");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^25([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 25", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC25", reference:"freerdp-2.0.0-31.20170724gitf8c9f43.fc25", epoch:"2")) flag++;
if (rpm_check(release:"FC25", reference:"remmina-1.2.0-0.39.20170724git0387ee0.fc25")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "2:freerdp / remmina");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3380-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(102260);
  script_version("1.6");
  script_cvs_date("Date: 2019/09/18 12:31:47");

  script_cve_id("CVE-2014-0250", "CVE-2014-0791", "CVE-2017-2834", "CVE-2017-2835", "CVE-2017-2836", "CVE-2017-2837", "CVE-2017-2838", "CVE-2017-2839");
  script_xref(name:"USN", value:"3380-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : freerdp vulnerabilities (USN-3380-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that FreeRDP incorrectly handled certain width and
height values. A malicious server could use this issue to cause
FreeRDP to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only applied to Ubuntu 14.04 LTS.
(CVE-2014-0250)

It was discovered that FreeRDP incorrectly handled certain values in a
Scope List. A malicious server could use this issue to cause FreeRDP
to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2014-0791)

Tyler Bohan discovered that FreeRDP incorrectly handled certain length
values. A malicious server could use this issue to cause FreeRDP to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2017-2834, CVE-2017-2835)

Tyler Bohan discovered that FreeRDP incorrectly handled certain
packets. A malicious server could possibly use this issue to cause
FreeRDP to crash, resulting in a denial of service. (CVE-2017-2836,
CVE-2017-2837, CVE-2017-2838, CVE-2017-2839).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3380-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected libfreerdp-client1.1 and / or libfreerdp1
packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp-client1.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/08");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|16\.04|17\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 16.04 / 17.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"libfreerdp1", pkgver:"1.0.2-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"libfreerdp-client1.1", pkgver:"1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.2")) flag++;
if (ubuntu_check(osver:"17.04", pkgname:"libfreerdp-client1.1", pkgver:"1.1.0~git20140921.1.440916e+dfsg1-10ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libfreerdp-client1.1 / libfreerdp1");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-992.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(102945);
  script_version("3.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2017-2834", "CVE-2017-2835", "CVE-2017-2836", "CVE-2017-2837", "CVE-2017-2838", "CVE-2017-2839");

  script_name(english:"openSUSE Security Update : freerdp (openSUSE-2017-992)");
  script_summary(english:"Check for the openSUSE-2017-992 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for freerdp fixes the following issues :

  - CVE-2017-2834: Out-of-bounds write in license_recv()
    (bsc#1050714)

  - CVE-2017-2835: Out-of-bounds write in rdp_recv_tpkt_pdu
    (bsc#1050712)

  - CVE-2017-2836: Rdp Client Read Server Proprietary
    Certificate Denial of Service (bsc#1050699)

  - CVE-2017-2837: Client GCC Read Server Security Data DoS
    (bsc#1050704)

  - CVE-2017-2838: Client License Read Product Info Denial
    of Service Vulnerability (bsc#1050708)

  - CVE-2017-2839: Client License Read Challenge Packet
    Denial of Service (bsc#1050711)

This update was imported from the SUSE:SLE-12-SP2:Update update
project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050699"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050704"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050708"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050711"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050712"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1050714"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected freerdp packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:freerdp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:freerdp-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:freerdp-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:freerdp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libfreerdp2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libfreerdp2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.2|SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2 / 42.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.2", reference:"freerdp-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"freerdp-debuginfo-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"freerdp-debugsource-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"freerdp-devel-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libfreerdp2-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libfreerdp2-debuginfo-2.0.0~git.1463131968.4e66df7-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"freerdp-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"freerdp-debuginfo-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"freerdp-debugsource-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"freerdp-devel-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libfreerdp2-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"libfreerdp2-debuginfo-2.0.0~git.1463131968.4e66df7-6.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "freerdp / freerdp-debuginfo / freerdp-debugsource / freerdp-devel / etc");
}