5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.3 High
AI Score
Confidence
Low
0.013 Low
EPSS
Percentile
85.9%
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1951 advisory.
nss: NULL pointer dereference in several CMS functions resulting in a denial of service (CVE-2018-18508)
nss: Out-of-bounds read when importing curve25519 private key (CVE-2019-11719)
nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (CVE-2019-11727)
nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault (CVE-2019-11729)
nss: Handling of Netscape Certificate Sequences in CERT_DecodeCertPackage() may crash with a NULL deref leading to DoS (CVE-2019-17007)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2019:1951. The text
# itself is copyright (C) Red Hat, Inc.
#
include('compat.inc');
if (description)
{
script_id(127636);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/27");
script_cve_id(
"CVE-2018-18508",
"CVE-2019-11719",
"CVE-2019-11727",
"CVE-2019-11729",
"CVE-2019-17007"
);
script_xref(name:"RHSA", value:"2019:1951");
script_name(english:"RHEL 8 : nss and nspr (RHSA-2019:1951)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2019:1951 advisory.
- nss: NULL pointer dereference in several CMS functions resulting in a denial of service (CVE-2018-18508)
- nss: Out-of-bounds read when importing curve25519 private key (CVE-2019-11719)
- nss: PKCS#1 v1.5 signatures can be used for TLS 1.3 (CVE-2019-11727)
- nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault (CVE-2019-11729)
- nss: Handling of Netscape Certificate Sequences in CERT_DecodeCertPackage() may crash with a NULL deref
leading to DoS (CVE-2019-17007)
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/security/data/csaf/v2/advisories/2019/rhsa-2019_1951.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d8286550");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:1951");
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=1671310");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1685325");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1719629");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1719630");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1722373");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1722374");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1725059");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1725110");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1725115");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1725116");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1728259");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1728260");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1728261");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1728436");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1728437");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1730988");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:H/I:N/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-2019-11727");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-11719");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(120, 125, 327, 476);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/23");
script_set_attribute(attribute:"patch_publication_date", value:"2019/07/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nspr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nspr-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-softokn");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-softokn-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-sysinit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-util");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:nss-util-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("redhat_repos.nasl", "ssh_get_info.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: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.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/rhel8/8.10/aarch64/appstream/debug',
'content/dist/rhel8/8.10/aarch64/appstream/os',
'content/dist/rhel8/8.10/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.10/ppc64le/appstream/debug',
'content/dist/rhel8/8.10/ppc64le/appstream/os',
'content/dist/rhel8/8.10/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.10/s390x/appstream/debug',
'content/dist/rhel8/8.10/s390x/appstream/os',
'content/dist/rhel8/8.10/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.10/x86_64/appstream/debug',
'content/dist/rhel8/8.10/x86_64/appstream/os',
'content/dist/rhel8/8.10/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.6/aarch64/appstream/debug',
'content/dist/rhel8/8.6/aarch64/appstream/os',
'content/dist/rhel8/8.6/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.6/ppc64le/appstream/debug',
'content/dist/rhel8/8.6/ppc64le/appstream/os',
'content/dist/rhel8/8.6/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.6/s390x/appstream/debug',
'content/dist/rhel8/8.6/s390x/appstream/os',
'content/dist/rhel8/8.6/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.6/x86_64/appstream/debug',
'content/dist/rhel8/8.6/x86_64/appstream/os',
'content/dist/rhel8/8.6/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.8/aarch64/appstream/debug',
'content/dist/rhel8/8.8/aarch64/appstream/os',
'content/dist/rhel8/8.8/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.8/ppc64le/appstream/debug',
'content/dist/rhel8/8.8/ppc64le/appstream/os',
'content/dist/rhel8/8.8/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.8/s390x/appstream/debug',
'content/dist/rhel8/8.8/s390x/appstream/os',
'content/dist/rhel8/8.8/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.8/x86_64/appstream/debug',
'content/dist/rhel8/8.8/x86_64/appstream/os',
'content/dist/rhel8/8.8/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8.9/aarch64/appstream/debug',
'content/dist/rhel8/8.9/aarch64/appstream/os',
'content/dist/rhel8/8.9/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8.9/ppc64le/appstream/debug',
'content/dist/rhel8/8.9/ppc64le/appstream/os',
'content/dist/rhel8/8.9/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8.9/s390x/appstream/debug',
'content/dist/rhel8/8.9/s390x/appstream/os',
'content/dist/rhel8/8.9/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8.9/x86_64/appstream/debug',
'content/dist/rhel8/8.9/x86_64/appstream/os',
'content/dist/rhel8/8.9/x86_64/appstream/source/SRPMS',
'content/dist/rhel8/8/aarch64/appstream/debug',
'content/dist/rhel8/8/aarch64/appstream/os',
'content/dist/rhel8/8/aarch64/appstream/source/SRPMS',
'content/dist/rhel8/8/ppc64le/appstream/debug',
'content/dist/rhel8/8/ppc64le/appstream/os',
'content/dist/rhel8/8/ppc64le/appstream/source/SRPMS',
'content/dist/rhel8/8/s390x/appstream/debug',
'content/dist/rhel8/8/s390x/appstream/os',
'content/dist/rhel8/8/s390x/appstream/source/SRPMS',
'content/dist/rhel8/8/x86_64/appstream/debug',
'content/dist/rhel8/8/x86_64/appstream/os',
'content/dist/rhel8/8/x86_64/appstream/source/SRPMS'
],
'pkgs': [
{'reference':'nspr-4.21.0-2.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nspr-devel-4.21.0-2.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-devel-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-softokn-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-softokn-devel-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-softokn-freebl-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-softokn-freebl-devel-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-sysinit-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-tools-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-util-3.44.0-7.el8_0', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'nss-util-devel-3.44.0-7.el8_0', 'release':'8', '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_WARNING,
extra : extra
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'nspr / nspr-devel / nss / nss-devel / nss-softokn / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | nspr | p-cpe:/a:redhat:enterprise_linux:nspr |
redhat | enterprise_linux | nspr-devel | p-cpe:/a:redhat:enterprise_linux:nspr-devel |
redhat | enterprise_linux | nss | p-cpe:/a:redhat:enterprise_linux:nss |
redhat | enterprise_linux | nss-devel | p-cpe:/a:redhat:enterprise_linux:nss-devel |
redhat | enterprise_linux | nss-softokn | p-cpe:/a:redhat:enterprise_linux:nss-softokn |
redhat | enterprise_linux | nss-softokn-devel | p-cpe:/a:redhat:enterprise_linux:nss-softokn-devel |
redhat | enterprise_linux | nss-softokn-freebl | p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl |
redhat | enterprise_linux | nss-softokn-freebl-devel | p-cpe:/a:redhat:enterprise_linux:nss-softokn-freebl-devel |
redhat | enterprise_linux | nss-sysinit | p-cpe:/a:redhat:enterprise_linux:nss-sysinit |
redhat | enterprise_linux | nss-tools | p-cpe:/a:redhat:enterprise_linux:nss-tools |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18508
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11719
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11727
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11729
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17007
www.nessus.org/u?d8286550
access.redhat.com/errata/RHSA-2019:1951
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1671310
bugzilla.redhat.com/show_bug.cgi?id=1685325
bugzilla.redhat.com/show_bug.cgi?id=1719629
bugzilla.redhat.com/show_bug.cgi?id=1719630
bugzilla.redhat.com/show_bug.cgi?id=1722373
bugzilla.redhat.com/show_bug.cgi?id=1722374
bugzilla.redhat.com/show_bug.cgi?id=1725059
bugzilla.redhat.com/show_bug.cgi?id=1725110
bugzilla.redhat.com/show_bug.cgi?id=1725115
bugzilla.redhat.com/show_bug.cgi?id=1725116
bugzilla.redhat.com/show_bug.cgi?id=1728259
bugzilla.redhat.com/show_bug.cgi?id=1728260
bugzilla.redhat.com/show_bug.cgi?id=1728261
bugzilla.redhat.com/show_bug.cgi?id=1728436
bugzilla.redhat.com/show_bug.cgi?id=1728437
bugzilla.redhat.com/show_bug.cgi?id=1730988
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.3 High
AI Score
Confidence
Low
0.013 Low
EPSS
Percentile
85.9%