OpenRISC mor1kx ALU Unit memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in OpenRISC mor1kx. Affected is an unknown function of the component ALU Unit. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2021-41612. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenRISC mor1kx (unknown version). Affected by this issue is an unknown code block of the component ALU Unit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 04/18/2023 as 139. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-41612 since 09/25/2021. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/05/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.0
VulDB Temp Score: 8.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/25/2021 🔍
04/18/2023 +570 days 🔍
04/18/2023 +0 days 🔍
05/05/2023 +17 days 🔍

Sourcesinfo

Product: github.com

Advisory: 139
Status: Confirmed

CVE: CVE-2021-41612 (🔍)
GCVE (CVE): GCVE-0-2021-41612
GCVE (VulDB): GCVE-100-226280

Entryinfo

Created: 04/18/2023 16:18
Updated: 05/05/2023 22:42
Changes: 04/18/2023 16:18 (38), 05/05/2023 22:42 (11)
Complete: 🔍
Cache ID: 216::103

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