Fedora Core Xen QEMU VNC information disclosure
| fedora-xen-qemuvnc-information-disclosure (33085) |  Medium Risk |
Description:
An unspecified vulnerability in the QEMU VNC code used by Xen in Fedora Core could allow a remote attacker with access to the VNC server to obtain sensitive information. If Xen is used to create a full virtual machine and monitor mode is enabled, an attacker could exploit this vulnerability to read arbitrary files on the system with root privileges.
*CVSS:
| Base Score: | 3 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | None |
| Availability Impact: | None |
| Temporal Score: | 2.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Obtain Information
Remedy:
For Fedora Core 5:
Refer to FEDORA-2007-344 for upgrade information. See References.
For Fedora Core 6:
Refer to FEDORA-2007-343 for upgrade information. See References.
For Red Hat Linux (xen):
Refer to RHSA-2007:0114 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- FEDORA-2007-343: Fedora Core 6 Update: xen-3.0.3-8.fc6.
- FEDORA-2007-344: Fedora Core 5 Update: xen-3.0.3-5.fc5.
- BID-22967: Xen QEMU VNC Server Arbitrary Information Disclosure Vulnerability
- CVE-2007-0998: The VNC server implementation in QEMU, as used by Xen and possibly other environments, allows local users of a guest operating system to read arbitrary files on the host operating system via unspecified vectors related to QEMU monitor mode, as demonstrated by mapping files to a CDROM device. NOTE: some of these details are obtained from third party information.
- RHSA-2007-0114: Important: xen security update
- SA24575: Fedora Xen VNC Server Host File Disclosure Security Issue
- SECTRACK ID: 1017764: Xen QEMU Monitor Mode Lets Local Users Read Arbitrary Files
- VUPEN/ADV-2007-1019: Xen VNC Server QEMU Monitor Mode Security Bypass and File Disclosure Vulnerability
Platforms Affected:
- FedoraProject Fedora Core 5
- FedoraProject Fedora Core 6
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5
- RedHat RHEL Desktop Multi OS 5 Client
- RedHat RHEL Virtualization 5 Server
Reported:
Mar 19, 2007
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.