9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
7.5 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
69.8%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:0457 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 following packages have been upgraded to a later upstream version: redhat-release-virtualization-host (4.2), redhat-virtualization-host (4.2). (BZ#1678629, BZ#1679414)
Security Fix(es):
* spice: Off-by-one error in array access in spice/server/memslot.c (CVE-2019-3813)
* systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash (CVE-2019-6454)
* vdsm: privilege escalation to root via systemd_run (CVE-2019-3831)
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 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-2019:0457. The text
# itself is copyright (C) Red Hat, Inc.
#
include('compat.inc');
if (description)
{
script_id(122737);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/14");
script_cve_id("CVE-2019-3813", "CVE-2019-3831", "CVE-2019-6454");
script_xref(name:"RHSA", value:"2019:0457");
script_name(english:"RHEL 7 : redhat-virtualization-host (RHSA-2019:0457)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for redhat-virtualization-host.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2019:0457 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 following packages have been upgraded to a later upstream version: redhat-release-virtualization-host
(4.2), redhat-virtualization-host (4.2). (BZ#1678629, BZ#1679414)
Security Fix(es):
* spice: Off-by-one error in array access in spice/server/memslot.c (CVE-2019-3813)
* systemd: Insufficient input validation in bus_process_object() resulting in PID 1 crash (CVE-2019-6454)
* vdsm: privilege escalation to root via systemd_run (CVE-2019-3831)
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 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_0457.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?898bd006");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:0457");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1665371");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1667032");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1677108");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1677667");
script_set_attribute(attribute:"solution", value:
"Update the RHEL redhat-virtualization-host package based on the guidance in RHSA-2019:0457.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:A/AC:H/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-2019-3831");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-3813");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(193, 20, 863);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/04");
script_set_attribute(attribute:"patch_publication_date", value:"2019/03/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:redhat-release-virtualization-host");
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:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update-placeholder");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
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: '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/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':'redhat-release-virtualization-host-4.2-8.3.el7', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'redhat-virtualization-host-image-update-4.2-20190219.0.el7_6', 'release':'7', 'el_string':'el7_6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'redhat-virtualization-host-image-update-placeholder-4.2-8.3.el7', 'release':'7', '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_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, 'redhat-release-virtualization-host / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | redhat-release-virtualization-host | p-cpe:/a:redhat:enterprise_linux:redhat-release-virtualization-host |
redhat | enterprise_linux | 7 | cpe:/o:redhat:enterprise_linux:7 |
redhat | enterprise_linux | redhat-virtualization-host-image-update | p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update |
redhat | enterprise_linux | redhat-virtualization-host | p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host |
redhat | enterprise_linux | redhat-virtualization-host-image-update-placeholder | p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update-placeholder |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3813
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3831
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6454
www.nessus.org/u?898bd006
access.redhat.com/errata/RHSA-2019:0457
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1665371
bugzilla.redhat.com/show_bug.cgi?id=1667032
bugzilla.redhat.com/show_bug.cgi?id=1677108
bugzilla.redhat.com/show_bug.cgi?id=1677667
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
7.5 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
69.8%