VulnerabilityModified

CVE-2021-41612

Any software that relies on this flag may experience corruption in execution.

HIGH 8.8EPSS 1.15%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.15% probability · 65th percentile
CISA KEV: Not listed
Affected: openrisc/mor1kx firmware
Source: cve@mitre.org

References

https://github.com/openrisc/mor1kx/issues/139VDB Entry
https://seth.engr.tamu.edu/software-releases/thehuzz/Exploit, Third Party Advisory
https://github.com/openrisc/mor1kx/issues/139VDB Entry
https://seth.engr.tamu.edu/software-releases/thehuzz/Exploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.