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https://bugzilla.redhat.com/show_bug.cgi?id=622928

RHSA-2010:0622

RHSA-2010:0628

Updated vdsm22 packages that fix one security issue and multiple bugs are now available for Red Hat Enterprise Linux 5.5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

VDSM is a management module that serves as a Red Hat Enterprise Virtualization Manager agent on Red Hat Enterprise Virtualization Hypervisor or Red Hat Enterprise Linux hosts.

Note: This update has been tested and is supported on Red Hat Enterprise Linux 5.5 (with all appropriate post-GA 5.5-specific updates).

A flaw was found in the way VDSM accepted SSL connections. An attacker could trigger this flaw by creating a crafted SSL connection to VDSM, preventing VDSM from accepting SSL connections from other users.
(CVE-2010-2811)

These updated vdsm22 packages also fix the following bugs :

* suspend-to-file hibernation failed for huge guests due to the migration and hibernation constant values being too short for huge guests. This update makes the timeouts proportional to guest RAM size, thus allowing suspension of huge guests in all cases except where storage is unbearably slow. (BZ#601275)

* under certain circumstances, restarting a VDSM that was being used as a Storage Pool Manager killed all system processes on the host.
With this update, stopping VDSM is ensured to kill only the processes that it started, and the VDSM SIGTERM handler is not run concurrently.
With these changes, all processes on the host are no longer killed when VDSM is restarted. (BZ#614849)

* when VDSM was requested to 'start in paused mode', it incorrectly reported virtual guest state as 'WaitForLaunch' instead of 'Paused', which led to the virtual guest being inaccessible from Red Hat Enterprise Virtualization Manager. With this update, VDSM reports such virtual guests as 'Paused', and users are able to connect to the virtual guest display. (BZ#616464)

Red Hat Enterprise Virtualization Manager 2.2 users with Red Hat Enterprise Linux hosts should install these updated packages, which resolve these issues. Alternatively, Red Hat Enterprise Virtualization Manager can install the new package automatically.

Updated rhev-hypervisor packages that fix multiple security issues and two bugs are 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-hypervisor 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.

It was found that the libspice component of QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash (denial of service) or, possibly, resulting in the privileged guest user escalating their privileges on the host. (CVE-2010-0428)

It was found that the libspice component of QEMU-KVM on the host could be forced to perform certain memory management operations on memory addresses controlled by a guest. A privileged guest user could use this flaw to crash the guest (denial of service) or, possibly, escalate their privileges on the host. (CVE-2010-0429)

It was found that QEMU-KVM on the host did not validate all pointers provided from a guest system's QXL graphics card driver. A privileged guest user could use this flaw to cause the host to dereference an invalid pointer, causing the guest to crash (denial of service) or, possibly, resulting in the privileged guest user escalating their privileges on the host. (CVE-2010-0431)

A flaw was found in QEMU-KVM, allowing the guest some control over the index used to access the callback array during sub-page MMIO initialization. A privileged guest user could use this flaw to crash the guest (denial of service) or, possibly, escalate their privileges on the host. (CVE-2010-2784)

A NULL pointer dereference flaw was found when Red Hat Enterprise Virtualization Hypervisor was run on a system that has a processor with the Intel VT-x extension enabled. A privileged guest user could use this flaw to trick the host into emulating a certain instruction, which could crash the host (denial of service). (CVE-2010-0435)

A flaw was found in the way VDSM accepted SSL connections. An attacker could trigger this flaw by creating a crafted SSL connection to VDSM, preventing VDSM from accepting SSL connections from other users.
(CVE-2010-2811)

These updated packages provide updated components that include fixes for security issues; however, these issues have no security impact for Red Hat Enterprise Virtualization Hypervisor. These fixes are for avahi issues CVE-2009-0758 and CVE-2010-2244; freetype issues CVE-2010-1797, CVE-2010-2498, CVE-2010-2499, CVE-2010-2500, CVE-2010-2519, CVE-2010-2527, and CVE-2010-2541; kernel issues CVE-2010-1084, CVE-2010-2066, CVE-2010-2070, CVE-2010-2226, CVE-2010-2248, CVE-2010-2521, and CVE-2010-2524; and openldap issues CVE-2010-0211 and CVE-2010-0212.

These updated rhev-hypervisor packages also fix two bugs.
Documentation for these bug fixes will be available shortly from http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Virtualization_fo r_Servers /2.2/html/Technical_Notes/index.html

As Red Hat Enterprise Virtualization Hypervisor is based on KVM, the bug fixes from the KVM update RHSA-2010:0627 have been included in this update. Also included are the bug fixes from the VDSM update RHSA-2010:0628.

KVM: https://rhn.redhat.com/errata/RHSA-2010-0627.html VDSM:
https://rhn.redhat.com/errata/RHSA-2010-0628.html

Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to these updated rhev-hypervisor packages, which resolve these issues.

ID	Name	Product	Family	Severity
79277	RHEL 5 : vdsm22 (RHSA-2010:0628)	Nessus	Red Hat Local Security Checks	medium
79276	RHEL 5 : rhev-hypervisor (RHSA-2010:0622)	Nessus	Red Hat Local Security Checks	medium

CVE-2010-2811

Description

References

Details

Risk Information

CVSS v2.0

Vulnerable Software

Configuration 1

Tenable Plugins