IBM Tivoli Provisioning Manager for OS Deployment rembo.exe denial of service
| tivoli-rembo-dos (35468) |  Low 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.
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 64-bit
- RedHat, Linux
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.
Consequences:
Denial of Service
References:
- IBM Support & downloads, FP3 Tivoli Provisioning Manager for OS Deployment 5.1.0-TIV-TPMOSD-FP0003 at http://www-1.ibm.com/support/docview.wss?uid=swg24016347.
- iDefense Labs PUBLIC ADVISORY: 07.17.07, IBM Tivoli Provisioning Manager for OS Deployment TFTP Blocksize DoS Vulnerability at http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=560.
- 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
Reported:
Jul 17, 2007
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