Oracle Linux 8 : python38:3.8 / and / python38-devel:3.8 (ELSA-2021-4162)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2021-4162.
##

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

if (description)
{
  script_id(155969);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");

  script_cve_id(
    "CVE-2019-18874",
    "CVE-2020-28493",
    "CVE-2021-3426",
    "CVE-2021-3572",
    "CVE-2021-23336",
    "CVE-2021-28957",
    "CVE-2021-29921",
    "CVE-2021-33503",
    "CVE-2021-42771"
  );
  script_xref(name:"IAVA", value:"2021-A-0263-S");
  script_xref(name:"IAVA", value:"2021-A-0052-S");

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  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2021-4162 advisory.

  - The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before
    3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and
    urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query
    parameters using a semicolon (;), they can cause a difference in the interpretation of the request between
    the proxy (running with default configuration) and the server. This can result in malicious requests being
    cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and
    therefore would not include it in a cache key of an unkeyed parameter. (CVE-2021-23336)

  - psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount
    mishandling within a while or for loop that converts system data into a Python object. (CVE-2019-18874)

  - Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing
    serialized Python objects) via directory traversal, leading to code execution. (CVE-2021-42771)

  - A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote
    attacker could possibly use this issue to install a different revision on a repository. The highest threat
    from this vulnerability is to data integrity. This is fixed in python-pip version 21.1. (CVE-2021-3572)

  - This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the
    `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most
    exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format
    user content instead of the urlize filter, or by implementing request timeouts and limiting process
    memory. (CVE-2020-28493)

  - An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling
    the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute
    allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS
    code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.
    (CVE-2021-28957)

  - In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP
    address string. This (in some situations) allows attackers to bypass access control that is based on IP
    addresses. (CVE-2021-29921)

  - There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince
    another local or adjacent user to start a pydoc server could access the server and use it to disclose
    sensitive information belonging to the other user that they would not normally be able to access. The
    highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9,
    Python versions before 3.9.3 and Python versions before 3.10.0a7. (CVE-2021-3426)

  - An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in
    the authority component, the authority regular expression exhibits catastrophic backtracking, causing a
    denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
    (CVE-2021-33503)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2021-4162.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected 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:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-29921");

  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:"2019/11/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/10");

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}


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

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + os_ver);

if (!get_kb_item('Host/RedHat/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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var module_ver = get_kb_item('Host/RedHat/appstream/python38');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module python38:3.8');
if ('3.8' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module python38:' + module_ver);

var appstreams = {
    'python38:3.8': [
      {'reference':'python38-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-asn1crypto-1.2.0-3.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-atomicwrites-1.3.0-8.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-attrs-19.3.0-3.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-babel-2.7.0-11.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-cffi-1.13.2-3.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-cffi-1.13.2-3.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-chardet-3.0.4-19.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-cryptography-2.8-3.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-cryptography-2.8-3.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-Cython-0.29.14-4.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-Cython-0.29.14-4.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-debug-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-debug-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-devel-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-devel-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-idle-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-idle-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-idna-2.8-6.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-jinja2-2.10.3-5.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-libs-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-libs-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-lxml-4.4.1-6.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-lxml-4.4.1-6.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-markupsafe-1.1.1-6.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-markupsafe-1.1.1-6.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-mod_wsgi-4.6.8-3.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-mod_wsgi-4.6.8-3.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-more-itertools-7.2.0-5.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-numpy-1.17.3-6.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-numpy-1.17.3-6.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-numpy-doc-1.17.3-6.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-numpy-f2py-1.17.3-6.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-numpy-f2py-1.17.3-6.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-packaging-19.2-3.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pip-19.3.1-4.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pip-wheel-19.3.1-4.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pluggy-0.13.0-3.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-ply-3.11-10.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psutil-5.6.4-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psutil-5.6.4-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-doc-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-doc-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-tests-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-psycopg2-tests-2.8.4-4.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-py-1.8.0-8.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pycparser-2.19-3.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-PyMySQL-0.10.1-1.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pyparsing-2.4.5-3.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pysocks-1.7.1-4.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pytest-4.6.6-3.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pytz-2019.3-3.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pyyaml-5.4.1-1.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-pyyaml-5.4.1-1.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-requests-2.22.0-9.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-rpm-macros-3.8.8-4.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-scipy-1.3.1-4.module+el8.4.0+20068+32a535e2', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-scipy-1.3.1-4.module+el8.4.0+20068+32a535e2', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-setuptools-41.6.0-5.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-setuptools-wheel-41.6.0-5.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-six-1.12.0-10.module+el8.4.0+20068+32a535e2', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-test-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-test-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-tkinter-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-tkinter-3.8.8-4.module+el8.5.0+20371+4f24d723', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-urllib3-1.25.7-5.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-wcwidth-0.1.7-16.module+el8.2.0+5579+085cd3bd', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-wheel-0.33.6-6.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python38-wheel-wheel-0.33.6-6.module+el8.5.0+20371+4f24d723', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
};

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RedHat/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var package_array ( appstreams[module] ) {
      var reference = NULL;
      var release = NULL;
      var sp = NULL;
      var cpu = NULL;
      var el_string = NULL;
      var rpm_spec_vers_cmp = NULL;
      var epoch = NULL;
      var allowmaj = NULL;
      if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
      if (!empty_or_null(package_array['release'])) release = 'EL' + 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['el_string'])) el_string = package_array['el_string'];
      if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
      if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
      if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
      if (reference && release) {
        if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
      }
    }
  }
}

if (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module python38:3.8');

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'python38 / python38-Cython / python38-PyMySQL / etc');
}