RHEL 6 : rhev-hypervisor6 (RHSA-2012:0109)

high Nessus Plugin ID 79282

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Synopsis

The remote Red Hat host is missing one or more security updates for rhev-hypervisor6.

Description

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.

Solution

Update the RHEL rhev-hypervisor6 package based on the guidance in RHSA-2012:0109.

Plugin Details

Severity: High

ID: 79282

File Name: redhat-RHSA-2012-0109.nasl

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/17/2014

Updated: 6/3/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.4

Temporal Score: 5.5

Vector: CVSS2#AV:A/AC:M/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2012-0029

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2011-4619

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:rhev-hypervisor6-tools

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 2/15/2012

Vulnerability Publication Date: 1/5/2012

Reference Information

CVE: CVE-2011-4576, CVE-2011-4577, CVE-2011-4619, CVE-2012-0029

BID: 51281, 51642

CWE: 119

RHSA: 2012:0109

Detections

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