CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
69.5%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:2714 advisory.
OpenStack Compute (nova) launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform.
Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects.
Security Fix(es):
* openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a denial of service in the host (CVE-2017-18191)
For more details about the security issue, including the impact, a CVSS score, and other related information, refer to the CVE page listed in the References section.
Bug Fix(es):
* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device.
With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network.
(BZ#1553839)
* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device.
With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network.
(BZ#1553559)
* Previously, the '[vnc] keymap' option was 'en-us' by default, and it was not possible to unset this configuration. As a result of this, non-US locales experienced ineffective key mappings.
With this update, users can unset the '[vnc] keymap' value. In this case, the VNC client configures the locale and non-US users attain more effective key mappings. (BZ#1441962)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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 descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2018:2714. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(194032);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id("CVE-2017-18191");
script_xref(name:"RHSA", value:"2018:2714");
script_name(english:"RHEL 7 : openstack-nova (RHSA-2018:2714)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for openstack-nova.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2018:2714 advisory.
OpenStack Compute (nova) launches and schedules large networks of virtual
machines, creating a redundant and scalable cloud computing platform.
Compute provides the software, control panels, and APIs required to
orchestrate a cloud, including running virtual machine instances and
controlling access through users and projects.
Security Fix(es):
* openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a
denial of service in the host (CVE-2017-18191)
For more details about the security issue, including the impact, a CVSS score, and other related
information, refer to the CVE page listed in the References section.
Bug Fix(es):
* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with
a different MTU than a guest TAP device.
With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the
correct parameter to libvirt, and the TAP device now has the same configuration as the network.
(BZ#1553839)
* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with
a different MTU than a guest TAP device.
With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the
correct parameter to libvirt, and the TAP device now has the same configuration as the network.
(BZ#1553559)
* Previously, the '[vnc] keymap' option was 'en-us' by default, and it was not possible to unset this
configuration. As a result of this, non-US locales experienced ineffective key mappings.
With this update, users can unset the '[vnc] keymap' value. In this case, the VNC client configures the
locale and non-US users attain more effective key mappings. (BZ#1441962)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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://access.redhat.com/security/updates/classification/#moderate");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1441962");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1546937");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1546965");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1553559");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1553839");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1569953");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1575989");
# https://access.redhat.com/security/data/csaf/v2/advisories/2018/rhsa-2018_2714.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?90668456");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:2714");
script_set_attribute(attribute:"solution", value:
"Update the RHEL openstack-nova package based on the guidance in RHSA-2018:2714.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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: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-2017-18191");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(20);
script_set_attribute(attribute:"vendor_severity", value:"Moderate");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/19");
script_set_attribute(attribute:"patch_publication_date", value:"2018/09/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-cells");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-cert");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-compute");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-conductor");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-console");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-migration");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-network");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-novncproxy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-placement-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-scheduler");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-serialproxy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openstack-nova-spicehtml5proxy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-nova");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-nova-tests");
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) 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: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.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/rhel/client/7/7Client/x86_64/openstack-tools/10/debug',
'content/dist/rhel/client/7/7Client/x86_64/openstack-tools/10/os',
'content/dist/rhel/client/7/7Client/x86_64/openstack-tools/10/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/openstack-devtools/10/debug',
'content/dist/rhel/server/7/7Server/x86_64/openstack-devtools/10/os',
'content/dist/rhel/server/7/7Server/x86_64/openstack-devtools/10/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/openstack-tools/10/debug',
'content/dist/rhel/server/7/7Server/x86_64/openstack-tools/10/os',
'content/dist/rhel/server/7/7Server/x86_64/openstack-tools/10/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/openstack/10/debug',
'content/dist/rhel/server/7/7Server/x86_64/openstack/10/os',
'content/dist/rhel/server/7/7Server/x86_64/openstack/10/source/SRPMS',
'content/dist/rhel/workstation/7/7Workstation/x86_64/openstack-tools/10/debug',
'content/dist/rhel/workstation/7/7Workstation/x86_64/openstack-tools/10/os',
'content/dist/rhel/workstation/7/7Workstation/x86_64/openstack-tools/10/source/SRPMS'
],
'pkgs': [
{'reference':'openstack-nova-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-api-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-cells-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-cert-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-common-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-compute-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-conductor-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-console-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-migration-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-network-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-novncproxy-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-placement-api-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-scheduler-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-serialproxy-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'openstack-nova-spicehtml5proxy-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'python-nova-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'},
{'reference':'python-nova-tests-14.1.0-26.el7ost', 'release':'7', 'el_string':'el7ost', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1', 'exists_check':'openstack-'}
]
}
];
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, 'openstack-nova / openstack-nova-api / openstack-nova-cells / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | openstack-nova-serialproxy | p-cpe:/a:redhat:enterprise_linux:openstack-nova-serialproxy |
redhat | enterprise_linux | python-nova | p-cpe:/a:redhat:enterprise_linux:python-nova |
redhat | enterprise_linux | openstack-nova-conductor | p-cpe:/a:redhat:enterprise_linux:openstack-nova-conductor |
redhat | enterprise_linux | openstack-nova-api | p-cpe:/a:redhat:enterprise_linux:openstack-nova-api |
redhat | enterprise_linux | openstack-nova-console | p-cpe:/a:redhat:enterprise_linux:openstack-nova-console |
redhat | enterprise_linux | openstack-nova-cert | p-cpe:/a:redhat:enterprise_linux:openstack-nova-cert |
redhat | enterprise_linux | openstack-nova-placement-api | p-cpe:/a:redhat:enterprise_linux:openstack-nova-placement-api |
redhat | enterprise_linux | openstack-nova-spicehtml5proxy | p-cpe:/a:redhat:enterprise_linux:openstack-nova-spicehtml5proxy |
redhat | enterprise_linux | openstack-nova-migration | p-cpe:/a:redhat:enterprise_linux:openstack-nova-migration |
redhat | enterprise_linux | openstack-nova-common | p-cpe:/a:redhat:enterprise_linux:openstack-nova-common |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18191
www.nessus.org/u?90668456
access.redhat.com/errata/RHSA-2018:2714
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1441962
bugzilla.redhat.com/show_bug.cgi?id=1546937
bugzilla.redhat.com/show_bug.cgi?id=1546965
bugzilla.redhat.com/show_bug.cgi?id=1553559
bugzilla.redhat.com/show_bug.cgi?id=1553839
bugzilla.redhat.com/show_bug.cgi?id=1569953
bugzilla.redhat.com/show_bug.cgi?id=1575989
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
69.5%