SUSE SLES12 Security Update : transfig (SUSE-SU-2021:3124-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:3124-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(153462);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");

  script_cve_id(
    "CVE-2019-19555",
    "CVE-2019-19746",
    "CVE-2019-19797",
    "CVE-2020-21680",
    "CVE-2020-21681",
    "CVE-2020-21682",
    "CVE-2020-21683",
    "CVE-2021-3561"
  );
  script_xref(name:"SuSE", value:"SUSE-SU-2021:3124-1");

  script_name(english:"SUSE SLES12 Security Update : transfig (SUSE-SU-2021:3124-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as
referenced in the SUSE-SU-2021:3124-1 advisory.

  - read_textobject in read.c in Xfig fig2dev 3.2.7b has a stack-based buffer overflow because of an incorrect
    sscanf. (CVE-2019-19555)

  - make_arrow in arrow.c in Xfig fig2dev 3.2.7b allows a segmentation fault and out-of-bounds write because
    of an integer overflow via a large arrow type. (CVE-2019-19746)

  - read_colordef in read.c in Xfig fig2dev 3.2.7b has an out-of-bounds write. (CVE-2019-19797)

  - A stack-based buffer overflow in the put_arrow() component in genpict2e.c of fig2dev 3.2.7b allows
    attackers to cause a denial of service (DOS) via converting a xfig file into pict2e format.
    (CVE-2020-21680)

  - A global buffer overflow in the set_color component in genge.c of fig2dev 3.2.7b allows attackers to cause
    a denial of service (DOS) via converting a xfig file into ge format. (CVE-2020-21681)

  - A global buffer overflow in the set_fill component in genge.c of fig2dev 3.2.7b allows attackers to cause
    a denial of service (DOS) via converting a xfig file into ge format. (CVE-2020-21682)

  - A global buffer overflow in the shade_or_tint_name_after_declare_color in genpstricks.c of fig2dev 3.2.7b
    allows attackers to cause a denial of service (DOS) via converting a xfig file into pstricks format.
    (CVE-2020-21683)

  - An Out of Bounds flaw was found fig2dev version 3.2.8a. A flawed bounds check in read_objects() could
    allow an attacker to provide a crafted malicious input causing the application to either crash or in some
    cases cause memory corruption. The highest threat from this vulnerability is to integrity as well as
    system availability. (CVE-2021-3561)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1136882");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1159130");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1159293");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1161698");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186329");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189325");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189343");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189345");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1189346");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19555");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19746");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2019-19797");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-21680");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-21681");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-21682");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-21683");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3561");
  # https://lists.suse.com/pipermail/sle-security-updates/2021-September/009457.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?550791ab");
  script_set_attribute(attribute:"solution", value:
"Update the affected transfig package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3561");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:transfig");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');

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

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2|3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP2/3/4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(3|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP3/4/5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.3']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.2']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'3', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.3']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'3', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.3']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
    {'reference':'transfig-3.2.8a-2.17.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        if ('ltss' >< tolower(check)) ltss_caveat_required = TRUE;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
  }
}

if (flag)
{
  var ltss_plugin_caveat = NULL;
  if(ltss_caveat_required) ltss_plugin_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in SUSE Enterprise Linux Server LTSS\n' +
    'repositories. Access to these package security updates require\n' +
    'a paid SUSE LTSS subscription.\n';
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + ltss_plugin_caveat
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'transfig');
}