Description
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 correctly for the subtract instruction, which results in an incorrect value in the overflow flag. Any software that relies on this flag may experience corruption in execution.
Published: 2023-04-18
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-27683 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 correctly for the subtract instruction, which results in an incorrect value in the overflow flag. Any software that relies on this flag may experience corruption in execution.
History

Thu, 06 Feb 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Openrisc Or1200 Or1200 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-02-06T15:11:50.028Z

Reserved: 2021-09-03T00:00:00.000Z

Link: CVE-2021-40507

cve-icon Vulnrichment

Updated: 2024-08-04T02:44:10.842Z

cve-icon NVD

Status : Modified

Published: 2023-04-18T12:15:07.307

Modified: 2025-02-06T16:15:29.867

Link: CVE-2021-40507

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses