The length of an OptoMMP Read Block Request is not properly limited

Applies To:

E1 Brain Board Firmware
E2 Brain Board Firmware

Versions Affected:

Problem affects versions: E1/E2 Firmware R1.1f and lower
Problem is fixed in version: E1/E2 Firmware R1.2a

Resolved In Version:

Problem is fixed in version: E1/E2 Firmware R1.2a

Symptoms:

If you are reading data from the memory map on an E1 or E2 brain board and you request more data than the area contains, the board may try to fulfill your request by returning the data you requested as well as additional data from other memory map areas. If you request a very large amount of data (for example, over 2000 bytes), the brain may became unresponsive and require a power cycle.

Resolution:

Opto 22 has resolved this issue.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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