Design/Logic Flaw

2023-04-1812:15:00

PRIOn knowledge base

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alu unit

or1200 processor

logic flaw

overflow flag

software corruption

nvd

9.7 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

An issue was discovered in the ALU unit of the OR1200 (aka OpenRISC 1200) processor 2011-09-10 through 2015-11-11. The overflow flag is not being updated for the msb and mac instructions, which results in an incorrect value in the overflow flag. Any software that relies on this flag may experience corruption in execution.

CPENameOperatorVersion
or1200_firmwareeq>= 2011910 AND <= 20151111

CPE	Name	Operator	Version
	or1200_firmware	eq	>= 2011910 AND <= 20151111

References

github.com/openrisc/or1200/commit/2c0765d7ba12813df273cd693a99c4e744f0fbd5

seth.engr.tamu.edu/software-releases/thehuzz/