CentOS 7 : python-pillow (RHSA-2020:0578)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2020:0578 and 
# CentOS Errata and Security Advisory 2020:0578 respectively.
#

include('compat.inc');

if (description)
{
  script_id(134091);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/09");

  script_cve_id("CVE-2019-16865", "CVE-2020-5312");
  script_xref(name:"RHSA", value:"2020:0578");

  script_name(english:"CentOS 7 : python-pillow (RHSA-2020:0578)");

  script_set_attribute(attribute:"synopsis", value:
"The remote CentOS Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
RHSA-2020:0578 advisory.

  - An issue was discovered in Pillow before 6.2.0. When reading specially crafted invalid image files, the
    library can either allocate very large amounts of memory or take an extremely long period of time to
    process the image. (CVE-2019-16865)

  - libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow. (CVE-2020-5312)

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://access.redhat.com/errata/RHSA-2020:0578");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-5312");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow-qt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow-sane");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-pillow-tk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/CentOS/release');
if (isnull(os_release) || 'CentOS' >!< os_release) audit(AUDIT_OS_NOT, 'CentOS');
var os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '7')) audit(AUDIT_OS_NOT, 'CentOS 7.x', 'CentOS ' + os_ver);

if (!get_kb_item('Host/CentOS/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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CentOS', cpu);

var pkgs = [
    {'reference':'python-pillow-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-devel-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-devel-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-doc-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-doc-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-qt-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-qt-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-sane-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-sane-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-tk-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'ppc64le', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-pillow-tk-2.0.0-20.gitd1c6db8.el7_7', 'cpu':'x86_64', 'release':'CentOS-7', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  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 = 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 (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, 'python-pillow / python-pillow-devel / python-pillow-doc / etc');
}