SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libssh (SUSE-SU-2024:0140-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2024:0140-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(189214);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/19");

  script_cve_id(
    "CVE-2023-1667",
    "CVE-2023-2283",
    "CVE-2023-6004",
    "CVE-2023-6918",
    "CVE-2023-48795"
  );
  script_xref(name:"IAVA", value:"2023-A-0517-S");
  script_xref(name:"IAVA", value:"2023-A-0703");
  script_xref(name:"SuSE", value:"SUSE-SU-2024:0140-1");

  script_name(english:"SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libssh (SUSE-SU-2024:0140-1)");

  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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are
affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0140-1 advisory.

  - A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may
    allow an authenticated client to cause a denial of service. (CVE-2023-1667)

  - A vulnerability was found in libssh, where the authentication check of the connecting client can be
    bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen
    if there is insufficient memory or the memory usage is limited. The problem is caused by the return value
    `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call
    `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the
    cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.
    (CVE-2023-2283)

  - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other
    products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the
    extension negotiation message), and a client and server may consequently end up with a connection for
    which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because
    the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and
    mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of
    ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and
    (if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API
    before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80,
    AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0,
    Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15,
    SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH
    through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang
    XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd
    through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and
    LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3,
    Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server
    before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the
    mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh
    crate before 0.40.2 for Rust. (CVE-2023-48795)

  - A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit
    unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into
    the command of the features mentioned through the hostname parameter. (CVE-2023-6004)

  - A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by
    different supported crypto backends. The return values from these were not properly checked, which could
    cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as
    an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures,
    terminating the connection. (CVE-2023-6918)

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/1211188");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1211190");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218126");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218186");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218209");
  # https://lists.suse.com/pipermail/sle-security-updates/2024-January/017678.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?52224dfd");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-1667");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-2283");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-48795");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-6004");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-6918");
  script_set_attribute(attribute:"solution", value:
"Update the affected libssh-config, libssh-devel, libssh4 and / or libssh4-32bit packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-2283");

  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:"2023/05/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/01/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/19");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libssh-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libssh-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libssh4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libssh4-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 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|SUSE)") audit(AUDIT_OS_NOT, "SUSE / openSUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+|SUSE([\d.]+))", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE / openSUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLED_SAP15|SLES15|SLES_SAP15|SUSE15\.5)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15', 'SUSE / openSUSE (' + 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 / openSUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP4/5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.4']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.5']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4', 'SLE_RT-release-15.4', 'SUSE-Manager-Proxy-release-4.3']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4', 'SLE_RT-release-15.4', 'SUSE-Manager-Proxy-release-4.3']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4', 'SLE_RT-release-15.4', 'SUSE-Manager-Proxy-release-4.3']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-ESPOS-release-4', 'SLE_RT-release-15.4', 'SUSE-Manager-Proxy-release-4.3', 'SUSE-Manager-Server-release-4.3']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-LTSS-release-15.4', 'sles-ltss-release-15.4']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'5', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'5', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.5', 'sle-module-basesystem-release-15.5', 'sled-release-15.5', 'sles-release-15.5']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Manager-Server-release-4.3']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Manager-Server-release-4.3']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SUSE-Manager-Server-release-4.3']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'cpu':'x86_64', 'release':'SUSE15.5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['openSUSE-release-15.5']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sled-release-15.4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sled-release-15.4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sled-release-15.4']},
    {'reference':'libssh4-32bit-0.9.8-150400.3.3.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sled-release-15.4']},
    {'reference':'libssh-config-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.4']},
    {'reference':'libssh-devel-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.4']},
    {'reference':'libssh4-0.9.8-150400.3.3.1', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-ltss-release-15.4']}
];

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, 'libssh-config / libssh-devel / libssh4 / libssh4-32bit');
}