IBM Tivoli Provisioning Manager for OS Deployment rembo.exe denial of service
| tivoli-rembo-dos (35468) |  Medium Risk |
Description:
IBM Tivoli Provisioning Manager for OS Deployment is vulnerable to a denial of service, caused by a divide-by-zero error. By sending a specially-crafted TFTP read request with an invalid "blksize" argument, a remote attacker could exploit this vulnerability to crash the rembo.exe service and cause the device to stop responding.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Apply the latest Fix Pack for IBM Tivoli Provisioning Manager for OS Deployment (Fix Pack 3, Version 5.1.0.3 or later), available from IBM Support & downloads Web site. See References.
References:
- IBM Support & downloads: FP3 Tivoli Provisioning Manager for OS Deployment 5.1.0-TIV-TPMOSD-FP0003.
- iDefense Labs PUBLIC ADVISORY: 07.17.07: IBM Tivoli Provisioning Manager for OS Deployment TFTP Blocksize DoS Vulnerability.
- BID-24942: IBM Tivoli Provisioning Manager for OS Deployment Divide By Zero Denial of Service Vulnerability
- CVE-2007-3268: The TFTP implementation in IBM Tivoli Provisioning Manager for OS Deployment 5.1 before Fix Pack 3 allows remote attackers to cause a denial of service (rembo.exe crash and multiple service outage) via a read (RRQ) request with an invalid blksize (blocksize), which triggers a divide-by-zero error.
- SA26093: IBM Tivoli Provisioning Manager for OS Deployment TFTP Read Request Denial of Service
- SECTRACK ID: 1018401: IBM Tivoli Provisioning Manager Divide By Zero Error in TFTP Service Lets Remote Users Deny Service
- VUPEN/ADV-2007-2560: IBM Tivoli Provisioning Manager for OS Deployment Denial of Service Vulnerability
Platforms Affected:
- IBM AIX
- IBM Tivoli Provisioning Manager OS Deployment 5.1.0.2
- Microsoft Windows 2000 Server
- Microsoft Windows 2003 Server
- Microsoft Windows Vista
- Microsoft Windows XP x64
- RedHat Linux
Reported:
Jul 17, 2007
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For corrections or additions please email xforce@iss.net
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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.