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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2023-6544.NASL
HistoryNov 07, 2023 - 12:00 a.m.

RHEL 9 : ghostscript (RHSA-2023:6544)

2023-11-0700:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12
rhel 9
ghostscript
vulnerabilities
buffer overflow
denial of service
pdf file
security advisory
redhat enterprise linux

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.8 High

AI Score

Confidence

Low

0.003 Low

EPSS

Percentile

70.6%

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:6544 advisory.

  • ghostscript: buffer overflow in base/sbcp.c leading to data corruption (CVE-2023-28879)

  • ghostscript: Out-of-bound read in base/gdevdevn.c:1973 in devn_pcx_write_rle could result in DoS (CVE-2023-38559)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:6544. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(185105);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id("CVE-2023-28879", "CVE-2023-38559");
  script_xref(name:"IAVB", value:"2023-B-0023-S");
  script_xref(name:"RHSA", value:"2023:6544");
  script_xref(name:"IAVB", value:"2023-B-0070-S");

  script_name(english:"RHEL 9 : ghostscript (RHSA-2023:6544)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for ghostscript.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2023:6544 advisory.

  - ghostscript: buffer overflow in base/sbcp.c leading to data corruption (CVE-2023-28879)

  - ghostscript: Out-of-bound read in base/gdevdevn.c:1973 in devn_pcx_write_rle could result in DoS
    (CVE-2023-38559)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.3_release_notes/index
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?619e5320");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_6544.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8f37c532");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184585");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2224367");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:6544");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL ghostscript package based on the guidance in RHSA-2023:6544.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:H/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-2023-28879");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(125, 787);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-tools-dvipdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-tools-fonts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-tools-printing");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ghostscript-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libgs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libgs-devel");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '9')) audit(AUDIT_OS_NOT, 'Red Hat 9.x', 'Red Hat ' + 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$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/rhel9/9.1/aarch64/appstream/debug',
      'content/dist/rhel9/9.1/aarch64/appstream/os',
      'content/dist/rhel9/9.1/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.1/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/ppc64le/appstream/debug',
      'content/dist/rhel9/9.1/ppc64le/appstream/os',
      'content/dist/rhel9/9.1/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.1/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/s390x/appstream/debug',
      'content/dist/rhel9/9.1/s390x/appstream/os',
      'content/dist/rhel9/9.1/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.1/s390x/codeready-builder/os',
      'content/dist/rhel9/9.1/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.1/x86_64/appstream/debug',
      'content/dist/rhel9/9.1/x86_64/appstream/os',
      'content/dist/rhel9/9.1/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.1/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/aarch64/appstream/debug',
      'content/dist/rhel9/9.2/aarch64/appstream/os',
      'content/dist/rhel9/9.2/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.2/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/ppc64le/appstream/debug',
      'content/dist/rhel9/9.2/ppc64le/appstream/os',
      'content/dist/rhel9/9.2/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.2/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/s390x/appstream/debug',
      'content/dist/rhel9/9.2/s390x/appstream/os',
      'content/dist/rhel9/9.2/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.2/s390x/codeready-builder/os',
      'content/dist/rhel9/9.2/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.2/x86_64/appstream/debug',
      'content/dist/rhel9/9.2/x86_64/appstream/os',
      'content/dist/rhel9/9.2/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.2/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/aarch64/appstream/debug',
      'content/dist/rhel9/9.3/aarch64/appstream/os',
      'content/dist/rhel9/9.3/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.3/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/ppc64le/appstream/debug',
      'content/dist/rhel9/9.3/ppc64le/appstream/os',
      'content/dist/rhel9/9.3/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.3/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/s390x/appstream/debug',
      'content/dist/rhel9/9.3/s390x/appstream/os',
      'content/dist/rhel9/9.3/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.3/s390x/codeready-builder/os',
      'content/dist/rhel9/9.3/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.3/x86_64/appstream/debug',
      'content/dist/rhel9/9.3/x86_64/appstream/os',
      'content/dist/rhel9/9.3/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.3/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/aarch64/appstream/debug',
      'content/dist/rhel9/9.4/aarch64/appstream/os',
      'content/dist/rhel9/9.4/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/os',
      'content/dist/rhel9/9.4/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/ppc64le/appstream/debug',
      'content/dist/rhel9/9.4/ppc64le/appstream/os',
      'content/dist/rhel9/9.4/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9.4/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/s390x/appstream/debug',
      'content/dist/rhel9/9.4/s390x/appstream/os',
      'content/dist/rhel9/9.4/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/s390x/codeready-builder/debug',
      'content/dist/rhel9/9.4/s390x/codeready-builder/os',
      'content/dist/rhel9/9.4/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9.4/x86_64/appstream/debug',
      'content/dist/rhel9/9.4/x86_64/appstream/os',
      'content/dist/rhel9/9.4/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/os',
      'content/dist/rhel9/9.4/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/aarch64/appstream/debug',
      'content/dist/rhel9/9/aarch64/appstream/os',
      'content/dist/rhel9/9/aarch64/appstream/source/SRPMS',
      'content/dist/rhel9/9/aarch64/codeready-builder/debug',
      'content/dist/rhel9/9/aarch64/codeready-builder/os',
      'content/dist/rhel9/9/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/appstream/debug',
      'content/dist/rhel9/9/ppc64le/appstream/os',
      'content/dist/rhel9/9/ppc64le/appstream/source/SRPMS',
      'content/dist/rhel9/9/ppc64le/codeready-builder/debug',
      'content/dist/rhel9/9/ppc64le/codeready-builder/os',
      'content/dist/rhel9/9/ppc64le/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/s390x/appstream/debug',
      'content/dist/rhel9/9/s390x/appstream/os',
      'content/dist/rhel9/9/s390x/appstream/source/SRPMS',
      'content/dist/rhel9/9/s390x/codeready-builder/debug',
      'content/dist/rhel9/9/s390x/codeready-builder/os',
      'content/dist/rhel9/9/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel9/9/x86_64/appstream/debug',
      'content/dist/rhel9/9/x86_64/appstream/os',
      'content/dist/rhel9/9/x86_64/appstream/source/SRPMS',
      'content/dist/rhel9/9/x86_64/codeready-builder/debug',
      'content/dist/rhel9/9/x86_64/codeready-builder/os',
      'content/dist/rhel9/9/x86_64/codeready-builder/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'ghostscript-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ghostscript-doc-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ghostscript-tools-dvipdf-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ghostscript-tools-fonts-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ghostscript-tools-printing-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ghostscript-x11-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libgs-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libgs-devel-9.54.0-13.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_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;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        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, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ghostscript / ghostscript-doc / ghostscript-tools-dvipdf / etc');
}
VendorProductVersionCPE
redhatenterprise_linux9cpe:/o:redhat:enterprise_linux:9
redhatenterprise_linuxghostscriptp-cpe:/a:redhat:enterprise_linux:ghostscript
redhatenterprise_linuxghostscript-docp-cpe:/a:redhat:enterprise_linux:ghostscript-doc
redhatenterprise_linuxghostscript-tools-dvipdfp-cpe:/a:redhat:enterprise_linux:ghostscript-tools-dvipdf
redhatenterprise_linuxghostscript-tools-fontsp-cpe:/a:redhat:enterprise_linux:ghostscript-tools-fonts
redhatenterprise_linuxghostscript-tools-printingp-cpe:/a:redhat:enterprise_linux:ghostscript-tools-printing
redhatenterprise_linuxghostscript-x11p-cpe:/a:redhat:enterprise_linux:ghostscript-x11
redhatenterprise_linuxlibgsp-cpe:/a:redhat:enterprise_linux:libgs
redhatenterprise_linuxlibgs-develp-cpe:/a:redhat:enterprise_linux:libgs-devel

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.8 High

AI Score

Confidence

Low

0.003 Low

EPSS

Percentile

70.6%