CVE-2021-41612

An issue was discovered in the ALU unit of the OpenRISC mor1kx processor. The carry flag is not being updated correctly for the subtract instruction, which results in an incorrect value of the carry flag. Any software that relies on this flag may experience corruption in execution.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
VendorProductVersion
openriscmor1kx_firmware
𝑥
< 5.1
𝑥
= Vulnerable software versions
References
https://github.com/openrisc/mor1kx/issues/139
https://seth.engr.tamu.edu/software-releases/thehuzz/
https://github.com/openrisc/mor1kx/issues/139
https://seth.engr.tamu.edu/software-releases/thehuzz/