gdmchooser host chooser format string
| gdmchooser-host-chooser-format-string (30896) |  High Risk |
Description:
gdmchooser, part of the GNOME Display Manager, could allow a local attacker to execute arbitrary commands on the system, caused by a format string vulnerability in the host chooser window. By supplying a specially-crafted hostname containing malicious format specifiers, an attacker could execute arbitrary commands on the system with the privileges of the GNOME Display Manager (gdm) service.
*CVSS:
| Base Score: | 4.9 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Upgrade to the latest version of the Gnome Display Manager (2.14.11, 2.16.4, or 2.17.4 or later), available from the GDM Web site. See References.
For Mandriva Linux:
Refer to Mandriva Linux Security Advisory MDKSA-2006:231 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to Gentoo Linux Security Announcement USN-396-1 for patch, upgrade, or suggested workaround information. See References.
References:
- GDM Web site: GDM - The GNOME Display Manager.
- iDefense Labs PUBLIC ADVISORY: 12.14.06: GNOME Foundation Display Manager gdmchooser Format String Vulnerability.
- BID-21597: GNOME Display Manager GDMChooser Local Format String Vulnerability
- CVE-2006-6105: Format string vulnerability in the host chooser window (gdmchooser) in GNOME Foundation Display Manager (gdm) allows local users to execute arbitrary code via format string specifiers in a hostname, which are used in an error dialog.
- MDKSA-2006:231: Updated gdm packages fix string vulnerability
- OSVDB ID: 30848: GNOME Foundation Display Manager gdmchooser hostname Format String
- SA23387: GNOME Foundation Display Manager "gdmchooser" Vulnerability
- SA23409: SUSE Update for Multiple Packages
- SECTRACK ID: 1017320: GNOME Structured File Library ole_init_info() Heap Overflow Lets Remote Users Execute Arbitrary Code
- SECTRACK ID: 1017383: GNOME Display Manager Lets Local Users Gain Elevated Privileges
- SUSE-SR:2006:029: SUSE Security Summary Report
- USN-396-1: gdm vulnerability
- VUPEN/ADV-2006-5015: GNOME Display Manager gdmchooser Host Name Handling Format String Vulnerability
Platforms Affected:
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 6.10
- GNOME GNOME Display Manager (GDM) 2.14.1-1
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
Reported:
Dec 14, 2006
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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.