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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
95.0%
An updated rhev-hypervisor6 package that fixes two security issues and various bugs is now available.
The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
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 flaw was found in the way KVM initialized a guest’s registered pv_eoi (paravirtualized end-of-interrupt) indication flag when entering the guest. An unprivileged guest user could potentially use this flaw to crash the host. (CVE-2013-1935)
A flaw was found in the way unexpected fields in guestInfo dictionaries were processed. A privileged guest user could potentially use this flaw to make the host the guest is running on unavailable to the management server. (CVE-2013-0167)
Red Hat would like to thank IBM for reporting the CVE-2013-1935 issue.
The CVE-2013-0167 issue was discovered by Dan Kenigsberg of the Red Hat Enterprise Virtualization team.
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-2013-1962 (libvirt issue)
CVE-2013-2017 and CVE-2013-1943 (kernel issues)
CVE-2012-6137 (subscription-manager issue)
This update also contains the fixes from the following errata :
vdsm: RHSA-2013:0886, which adds support for Red Hat Enterprise Virtualization 3.2 clusters.
ovirt-node: RHBA-2013:0908
Upgrade Note: If you upgrade the Red Hat Enterprise Virtualization Hypervisor through the 3.2 Manager administration portal, the Host may appear with the status of ‘Install Failed’. If this happens, place the host into maintenance mode, then activate it again to get the host back to an ‘Up’ state.
Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which corrects these issues.
#%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-2013:0907. The text
# itself is copyright (C) Red Hat, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(78961);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-0167", "CVE-2013-1935");
script_xref(name:"RHSA", value:"2013:0907");
script_name(english:"RHEL 6 : rhev-hypervisor6 (RHSA-2013:0907)");
script_summary(english:"Checks the rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"An updated rhev-hypervisor6 package that fixes two security issues and
various bugs is now available.
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.
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 flaw was found in the way KVM initialized a guest's registered
pv_eoi (paravirtualized end-of-interrupt) indication flag when
entering the guest. An unprivileged guest user could potentially use
this flaw to crash the host. (CVE-2013-1935)
A flaw was found in the way unexpected fields in guestInfo
dictionaries were processed. A privileged guest user could potentially
use this flaw to make the host the guest is running on unavailable to
the management server. (CVE-2013-0167)
Red Hat would like to thank IBM for reporting the CVE-2013-1935 issue.
The CVE-2013-0167 issue was discovered by Dan Kenigsberg of the Red
Hat Enterprise Virtualization team.
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-2013-1962 (libvirt issue)
CVE-2013-2017 and CVE-2013-1943 (kernel issues)
CVE-2012-6137 (subscription-manager issue)
This update also contains the fixes from the following errata :
* vdsm: RHSA-2013:0886, which adds support for Red Hat Enterprise
Virtualization 3.2 clusters.
* ovirt-node: RHBA-2013:0908
Upgrade Note: If you upgrade the Red Hat Enterprise Virtualization
Hypervisor through the 3.2 Manager administration portal, the Host may
appear with the status of 'Install Failed'. If this happens, place the
host into maintenance mode, then activate it again to get the host
back to an 'Up' state.
Users of the Red Hat Enterprise Virtualization Hypervisor are advised
to upgrade to this updated package, which corrects these issues."
);
# https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?c6b506c4"
);
# https://rhn.redhat.com/errata/RHSA-2013-0886.html
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2013:0886"
);
# https://rhn.redhat.com/errata/RHBA-2013-0908.html
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHBA-2013:0908"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2013:0907"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2013-1935"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2013-0167"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected rhev-hypervisor6 package."
);
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:N/I:N/A:C");
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:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/07/16");
script_set_attribute(attribute:"patch_publication_date", value:"2013/06/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/08");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2013:0907";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL6", reference:"rhev-hypervisor6-6.4-20130528.0.el6_4")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rhev-hypervisor6");
}
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0167
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1935
www.nessus.org/u?c6b506c4
access.redhat.com/errata/RHBA-2013:0908
access.redhat.com/errata/RHSA-2013:0886
access.redhat.com/errata/RHSA-2013:0907
access.redhat.com/security/cve/cve-2013-0167
access.redhat.com/security/cve/cve-2013-1935
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
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
95.0%