A vulnerability has been reported in IBM Tivoli Provisioning Manager for OS Deployment, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a division-by-zero error in rembo.exe when processing TFTP read requests. This can be exploited to crash the rembo.exe service via a specially crafted TFTP read request with an invalid "blksize" field.
The vulnerability is reported in version 22.214.171.124. Other versions may also be affected.
Solution: Apply Fix Pack 3, Version 126.96.36.199 (5.1.0-TIV-TPMOSD-FP0003). Please see the vendor's advisory for details.
Provided and/or discovered by: Discovered by Manuel Santamarina Suarez, and reported via iDefense Labs.
Original Advisory: IBM:
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Subject: IBM Tivoli Provisioning Manager for OS Deployment TFTP Read Request Denial of Service
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