CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.0%
The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ghostscript-9.54.0-7.el9 build changelog.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# the CentOS Stream Build Service.
##
include('compat.inc');
if (description)
{
script_id(191218);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/26");
script_cve_id("CVE-2021-45949");
script_name(english:"CentOS 9 : ghostscript-9.54.0-7.el9");
script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing a security update for ghostscript.");
script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the
ghostscript-9.54.0-7.el9 build changelog.
- Ghostscript GhostPDL 9.50 through 9.54.0 has a heap-based buffer overflow in sampled_data_finish (called
from sampled_data_continue and interp). (CVE-2021-45949)
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://kojihub.stream.centos.org/koji/buildinfo?buildID=17368");
script_set_attribute(attribute:"solution", value:
"Update the CentOS 9 Stream ghostscript package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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:N/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-2021-45949");
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:"2022/01/01");
script_set_attribute(attribute:"patch_publication_date", value:"2022/02/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/29");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:centos:centos:9");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-gtk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-tools-dvipdf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-tools-fonts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-tools-printing");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ghostscript-x11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libgs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libgs-devel");
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) 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(?: Stream)?(?: 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: '9')) audit(AUDIT_OS_NOT, 'CentOS 9.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':'ghostscript-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-doc-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-gtk-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-tools-dvipdf-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-tools-fonts-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-tools-printing-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'ghostscript-x11-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libgs-9.54.0-7.el9', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libgs-devel-9.54.0-7.el9', 'release':'9', '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 = 'CentOS-' + 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_WARNING,
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, 'ghostscript / ghostscript-doc / ghostscript-gtk / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
centos | centos | 9 | cpe:/a:centos:centos:9 |
centos | centos | ghostscript | p-cpe:/a:centos:centos:ghostscript |
centos | centos | ghostscript-doc | p-cpe:/a:centos:centos:ghostscript-doc |
centos | centos | ghostscript-gtk | p-cpe:/a:centos:centos:ghostscript-gtk |
centos | centos | ghostscript-tools-dvipdf | p-cpe:/a:centos:centos:ghostscript-tools-dvipdf |
centos | centos | ghostscript-tools-fonts | p-cpe:/a:centos:centos:ghostscript-tools-fonts |
centos | centos | ghostscript-tools-printing | p-cpe:/a:centos:centos:ghostscript-tools-printing |
centos | centos | ghostscript-x11 | p-cpe:/a:centos:centos:ghostscript-x11 |
centos | centos | libgs | p-cpe:/a:centos:centos:libgs |
centos | centos | libgs-devel | p-cpe:/a:centos:centos:libgs-devel |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
41.0%