6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
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
9.9 High
AI Score
Confidence
High
0.044 Low
EPSS
Percentile
92.4%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0028 advisory.
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release- virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The following packages have been upgraded to a later upstream version: openvswitch2.11 (2.11.3), ovn2.11 (2.11.1), redhat-release-virtualization-host (4.3.12), redhat-virtualization-host (4.3.12). (BZ#1898513, BZ#1907537, BZ#1907538)
Security Fix(es):
* lldpd: buffer overflow in the lldp_decode function in daemon/protocols/lldp.c (CVE-2015-8011)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2021:0028. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(144765);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");
script_cve_id("CVE-2015-8011");
script_bugtraq_id(77114);
script_xref(name:"RHSA", value:"2021:0028");
script_name(english:"RHEL 7 : Red Hat Virtualization (RHSA-2021:0028)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update.");
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-2021:0028 advisory.
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include
redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH)
are installed using a special build of Red Hat Enterprise Linux with only the packages required to host
virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and
performing administrative tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-
virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed
using a special build of Red Hat Enterprise Linux with only the packages required to host virtual
machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing
administrative tasks.
The following packages have been upgraded to a later upstream version: openvswitch2.11 (2.11.3), ovn2.11
(2.11.1), redhat-release-virtualization-host (4.3.12), redhat-virtualization-host (4.3.12). (BZ#1898513,
BZ#1907537, BZ#1907538)
Security Fix(es):
* lldpd: buffer overflow in the lldp_decode function in daemon/protocols/lldp.c (CVE-2015-8011)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
other related information, refer to the CVE page(s) listed in the References section.
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.");
# https://access.redhat.com/security/data/csaf/v2/advisories/2021/rhsa-2021_0028.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c3731bb8");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2021:0028");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1896536");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1898513");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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-2015-8011");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(120);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/16");
script_set_attribute(attribute:"patch_publication_date", value:"2021/01/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/06");
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:openvswitch2.11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openvswitch2.11-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11-host");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11-vtep");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-openvswitch2.11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update");
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) 2021-2024 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-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/debug',
'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/os',
'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/source/SRPMS',
'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/debug',
'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/os',
'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/source/SRPMS',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/debug',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/os',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/source/SRPMS',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/debug',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/os',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/source/SRPMS',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/debug',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/os',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/source/SRPMS',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/debug',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/os',
'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/source/SRPMS',
'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/debug',
'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/os',
'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/source/SRPMS',
'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/debug',
'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/os',
'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/os',
'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhevh/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhevh/os',
'content/dist/rhel/server/7/7Server/x86_64/rhevh/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/os',
'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/os',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/os',
'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/os',
'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/os',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/os',
'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/os',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/source/SRPMS',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/debug',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/os',
'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/source/SRPMS'
],
'pkgs': [
{'reference':'openvswitch2.11-2.11.3-77.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'openvswitch2.11-2.11.3-77.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'openvswitch2.11-devel-2.11.3-77.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'openvswitch2.11-devel-2.11.3-77.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-2.11.1-56.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-2.11.1-56.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-host-2.11.1-56.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-host-2.11.1-56.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-vtep-2.11.1-56.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'ovn2.11-vtep-2.11.1-56.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'python-openvswitch2.11-2.11.3-77.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'python-openvswitch2.11-2.11.3-77.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'redhat-virtualization-host-image-update-4.3.12-20201216.0.el7_9', 'release':'7', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'}
]
}
];
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, 'openvswitch2.11 / openvswitch2.11-devel / ovn2.11 / ovn2.11-host / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
redhat | enterprise_linux | ovn2.11-vtep | p-cpe:/a:redhat:enterprise_linux:ovn2.11-vtep |
redhat | enterprise_linux | python-openvswitch2.11 | p-cpe:/a:redhat:enterprise_linux:python-openvswitch2.11 |
redhat | enterprise_linux | ovn2.11 | p-cpe:/a:redhat:enterprise_linux:ovn2.11 |
redhat | enterprise_linux | ovn2.11-host | p-cpe:/a:redhat:enterprise_linux:ovn2.11-host |
redhat | enterprise_linux | openvswitch2.11 | p-cpe:/a:redhat:enterprise_linux:openvswitch2.11 |
redhat | enterprise_linux | redhat-virtualization-host | p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host |
redhat | enterprise_linux | redhat-virtualization-host-image-update | p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update |
redhat | enterprise_linux | openvswitch2.11-devel | p-cpe:/a:redhat:enterprise_linux:openvswitch2.11-devel |
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
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
9.9 High
AI Score
Confidence
High
0.044 Low
EPSS
Percentile
92.4%