Executive Summary
| Summary | |
|---|---|
| Title | xen security and bug fix update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2009:1472 | First vendor Publication | 2009-10-01 |
| Vendor | RedHat | Last vendor Modification | 2009-10-01 |
| Severity (Vendor) | Moderate | Revision | 01 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.2 | Attack Range | Local |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 3.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated xen packages that fix a security issue and multiple bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 RHEL Desktop Multi OS (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, x86_64 RHEL Virtualization (v. 5 server) - i386, ia64, x86_64 3. Description: Xen is an open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system. The pyGrub boot loader did not honor the "password" option in the grub.conf file for para-virtualized guests. Users with access to a guest's console could use this flaw to bypass intended access restrictions and boot the guest with arbitrary kernel boot options, allowing them to get root privileges in the guest's operating system. With this update, pyGrub correctly honors the "password" option in grub.conf for para-virtualized guests. (CVE-2009-3525) This update also fixes the following bugs: * rebooting para-virtualized guests sometimes caused those guests to crash due to a race condition in the xend node control daemon. This update fixes this race condition so that rebooting guests no longer potentially causes them to crash and fail to reboot. (BZ#525141) * due to a race condition in the xend daemon, a guest could disappear from the list of running guests following a reboot, even though the guest rebooted successfully and was running. This update fixes this race condition so that guests always reappear in the guest list following a reboot. (BZ#525143) * attempting to use PCI pass-through to para-virtualized guests on certain kernels failed with a "Function not implemented" error message. As a result, users requiring PCI pass-through on para-virtualized guests were not able to update the xen packages without also updating the kernel and thus requiring a reboot. These updated packages enable PCI pass-through for para-virtualized guests so that users do not need to upgrade the kernel in order to take advantage of PCI pass-through functionality. (BZ#525149) All Xen users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the xend service must be restarted for this update to take effect. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 525141 - [REG][Xen][5.4] PV domains may crash after reboot 525142 - Add grub.conf password protection support to pygrub 525143 - Domain goes missing from xm list when rebooted 525149 - PCI-Paththrough with PCI-Card does not work anymore with RHEL5.4 525740 - CVE-2009-3525 Xen: PyGrub missing support for password configuration command |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2009-1472.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-264 | Permissions, Privileges, and Access Controls |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:22812 | |||
| Oval ID: | oval:org.mitre.oval:def:22812 | ||
| Title: | ELSA-2009:1472: xen security and bug fix update (Moderate) | ||
| Description: | The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2009:1472-01 CVE-2009-3525 | Version: | 6 |
| Platform(s): | Oracle Linux 5 | Product(s): | xen |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:29340 | |||
| Oval ID: | oval:org.mitre.oval:def:29340 | ||
| Title: | RHSA-2009:1472 -- xen security and bug fix update (Moderate) | ||
| Description: | Updated xen packages that fix a security issue and multiple bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team. Xen is an open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2009:1472 CESA-2009:1472-CentOS 5 CVE-2009-3525 | Version: | 3 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 | Product(s): | xen |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:9466 | |||
| Oval ID: | oval:org.mitre.oval:def:9466 | ||
| Title: | The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password. | ||
| Description: | The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2009-3525 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 Oracle Linux 5 | Product(s): | |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 3 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2011-08-09 | Name : CentOS Update for xen CESA-2009:1472 centos5 i386 File : nvt/gb_CESA-2009_1472_xen_centos5_i386.nasl |
| 2009-11-11 | Name : CentOS Security Advisory CESA-2009:1472 (xen) File : nvt/ovcesa2009_1472.nasl |
| 2009-10-06 | Name : RedHat Security Advisory RHSA-2009:1472 File : nvt/RHSA_2009_1472.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 58621 | Xen pyGrub Boot Loader Para-virtualized Guest Password Bypass |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2009-1472.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20091001_xen_on_SL5_x.nasl - Type : ACT_GATHER_INFO |
| 2010-12-02 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_xen-201004-100220.nasl - Type : ACT_GATHER_INFO |
| 2010-12-02 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_xen-201004-100331.nasl - Type : ACT_GATHER_INFO |
| 2010-05-26 | Name : The remote openSUSE host is missing a security update. File : suse_11_1_xen-201004-100220.nasl - Type : ACT_GATHER_INFO |
| 2010-01-06 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2009-1472.nasl - Type : ACT_GATHER_INFO |
| 2009-10-02 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2009-1472.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:52:55 |
|
