CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:S/C:C/I:C/A:C
AI Score
Confidence
Low
EPSS
Percentile
96.2%
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0109 advisory.
The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.
Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.
A heap overflow flaw was found in the way QEMU-KVM emulated the e1000 network interface card. A privileged guest user in a virtual machine whose network interface is configured to use the e1000 emulated driver could use this flaw to crash the host or, possibly, escalate their privileges on the host. (CVE-2012-0029)
An information leak flaw was found in the SSL 3.0 protocol implementation in OpenSSL. Incorrect initialization of SSL record padding bytes could cause an SSL client or server to send a limited amount of possibly sensitive data to its SSL peer via the encrypted connection.
(CVE-2011-4576)
A denial of service flaw was found in the RFC 3779 implementation in OpenSSL. A remote attacker could use this flaw to make an application using OpenSSL exit unexpectedly by providing a specially-crafted X.509 certificate that has malformed RFC 3779 extension data. (CVE-2011-4577)
It was discovered that OpenSSL did not limit the number of TLS/SSL handshake restarts required to support Server Gated Cryptography. A remote attacker could use this flaw to make a TLS/SSL server using OpenSSL consume an excessive amount of CPU by continuously restarting the handshake.
(CVE-2011-4619)
Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029.
This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers:
CVE-2009-5029 and CVE-2011-4609 (glibc issues)
CVE-2012-0056 (kernel issue)
CVE-2011-4108 and CVE-2012-0050 (openssl issues)
This update also fixes the following bugs:
* Previously, it was possible to begin a Hypervisor installation without any valid disks to install to.
Now, if no valid disks are found for Hypervisor installation, a message is displayed informing the user that there are no valid disks for installation. (BZ#781471)
* Previously, the user interface for the Hypervisor did not indicate whether the system was registered with Red Hat Network (RHN) Classic or RHN Satellite. As a result, customers could not easily determine the registration status of their Hypervisor installations.
The TUI has been updated to display the registration status of the Hypervisor. (BZ#788223)
* Previously, autoinstall would fail if the firstboot or reinstall options were passed but local_boot or upgrade were not passed. Now, neither the local_boot or upgrade parameters are required for autoinstall. (BZ#788225)
Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues.
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2012:0109. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(79282);
script_version("1.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/03");
script_cve_id(
"CVE-2011-4576",
"CVE-2011-4577",
"CVE-2011-4619",
"CVE-2012-0029"
);
script_bugtraq_id(51281, 51642);
script_xref(name:"RHSA", value:"2012:0109");
script_name(english:"RHEL 6 : rhev-hypervisor6 (RHSA-2012:0109)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for rhev-hypervisor6.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2012:0109 advisory.
The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization
Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor
is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes
everything necessary to run and manage virtual machines: A subset of the
Red Hat Enterprise Linux operating environment and the Red Hat Enterprise
Virtualization Agent.
Note: Red Hat Enterprise Virtualization Hypervisor is only available for
the Intel 64 and AMD64 architectures with virtualization extensions.
A heap overflow flaw was found in the way QEMU-KVM emulated the e1000
network interface card. A privileged guest user in a virtual machine whose
network interface is configured to use the e1000 emulated driver could use
this flaw to crash the host or, possibly, escalate their privileges on the
host. (CVE-2012-0029)
An information leak flaw was found in the SSL 3.0 protocol implementation
in OpenSSL. Incorrect initialization of SSL record padding bytes could
cause an SSL client or server to send a limited amount of possibly
sensitive data to its SSL peer via the encrypted connection.
(CVE-2011-4576)
A denial of service flaw was found in the RFC 3779 implementation in
OpenSSL. A remote attacker could use this flaw to make an application using
OpenSSL exit unexpectedly by providing a specially-crafted X.509
certificate that has malformed RFC 3779 extension data. (CVE-2011-4577)
It was discovered that OpenSSL did not limit the number of TLS/SSL
handshake restarts required to support Server Gated Cryptography. A remote
attacker could use this flaw to make a TLS/SSL server using OpenSSL consume
an excessive amount of CPU by continuously restarting the handshake.
(CVE-2011-4619)
Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029.
This updated package provides updated components that include fixes for
various security issues. These issues have no security impact on Red Hat
Enterprise Virtualization Hypervisor itself, however. The security fixes
included in this update address the following CVE numbers:
CVE-2009-5029 and CVE-2011-4609 (glibc issues)
CVE-2012-0056 (kernel issue)
CVE-2011-4108 and CVE-2012-0050 (openssl issues)
This update also fixes the following bugs:
* Previously, it was possible to begin a Hypervisor installation without
any valid disks to install to.
Now, if no valid disks are found for Hypervisor installation, a message is
displayed informing the user that there are no valid disks for
installation. (BZ#781471)
* Previously, the user interface for the Hypervisor did not indicate
whether the system was registered with Red Hat Network (RHN) Classic or RHN
Satellite. As a result, customers could not easily determine the
registration status of their Hypervisor installations.
The TUI has been updated to display the registration status of the
Hypervisor. (BZ#788223)
* Previously, autoinstall would fail if the firstboot or reinstall options
were passed but local_boot or upgrade were not passed. Now, neither the
local_boot or upgrade parameters are required for autoinstall. (BZ#788225)
Users of the Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package, which fixes these issues.
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.");
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=771775");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=771778");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=771780");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=772075");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=781472");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=788225");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=788226");
# http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/Technical_Notes/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?547dba9a");
# https://access.redhat.com/security/data/csaf/v2/advisories/2012/rhsa-2012_0109.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?62eb2df3");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2012:0109");
script_set_attribute(attribute:"solution", value:
"Update the RHEL rhev-hypervisor6 package based on the guidance in RHSA-2012:0109.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C");
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:N/I:N/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-2012-0029");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2011-4619");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_cwe_id(119);
script_set_attribute(attribute:"vendor_severity", value:"Important");
script_set_attribute(attribute:"vuln_publication_date", value:"2012/01/05");
script_set_attribute(attribute:"patch_publication_date", value:"2012/02/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
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) 2014-2024 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: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.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/6/6Client/i386/rhv-agent/4/debug',
'content/dist/rhel/client/6/6Client/i386/rhv-agent/4/os',
'content/dist/rhel/client/6/6Client/i386/rhv-agent/4/source/SRPMS',
'content/dist/rhel/client/6/6Client/x86_64/rhv-agent/4/debug',
'content/dist/rhel/client/6/6Client/x86_64/rhv-agent/4/os',
'content/dist/rhel/client/6/6Client/x86_64/rhv-agent/4/source/SRPMS',
'content/dist/rhel/server/6/6Server/i386/rhv-agent/4/debug',
'content/dist/rhel/server/6/6Server/i386/rhv-agent/4/os',
'content/dist/rhel/server/6/6Server/i386/rhv-agent/4/source/SRPMS',
'content/dist/rhel/server/6/6Server/x86_64/rhevh/debug',
'content/dist/rhel/server/6/6Server/x86_64/rhevh/os',
'content/dist/rhel/server/6/6Server/x86_64/rhevh/source/SRPMS',
'content/dist/rhel/server/6/6Server/x86_64/rhv-agent/4/debug',
'content/dist/rhel/server/6/6Server/x86_64/rhv-agent/4/os',
'content/dist/rhel/server/6/6Server/x86_64/rhv-agent/4/source/SRPMS',
'content/dist/rhel/workstation/6/6Workstation/i386/rhv-agent/4/debug',
'content/dist/rhel/workstation/6/6Workstation/i386/rhv-agent/4/os',
'content/dist/rhel/workstation/6/6Workstation/i386/rhv-agent/4/source/SRPMS',
'content/dist/rhel/workstation/6/6Workstation/x86_64/rhv-agent/4/debug',
'content/dist/rhel/workstation/6/6Workstation/x86_64/rhv-agent/4/os',
'content/dist/rhel/workstation/6/6Workstation/x86_64/rhv-agent/4/source/SRPMS'
],
'pkgs': [
{'reference':'rhev-hypervisor6-6.2-20120209.0.el6_2', 'release':'6', 'el_string':'el6_2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
{'reference':'rhev-hypervisor6-tools-6.2-20120209.0.el6_2', 'release':'6', 'el_string':'el6_2', '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, 'rhev-hypervisor6 / rhev-hypervisor6-tools');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | rhev-hypervisor6 | p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6 |
redhat | enterprise_linux | 6 | cpe:/o:redhat:enterprise_linux:6 |
redhat | enterprise_linux | rhev-hypervisor6-tools | p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6-tools |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4576
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4577
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4619
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0029
www.nessus.org/u?547dba9a
www.nessus.org/u?62eb2df3
access.redhat.com/errata/RHSA-2012:0109
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=771775
bugzilla.redhat.com/show_bug.cgi?id=771778
bugzilla.redhat.com/show_bug.cgi?id=771780
bugzilla.redhat.com/show_bug.cgi?id=772075
bugzilla.redhat.com/show_bug.cgi?id=781472
bugzilla.redhat.com/show_bug.cgi?id=788225
bugzilla.redhat.com/show_bug.cgi?id=788226