CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.7 | $0-$5k | 0.00 |
A vulnerability was found in OpenRISC OR1200 (affected version not known). It has been rated as critical. This issue affects some unknown functionality 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. The summary by CVE is:
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.
The weakness was disclosed 04/18/2023 as 2c0765d7ba12813df273cd693a99c4e744f0fbd5. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-40506 since 09/03/2021. Neither technical details nor an exploit are publicly available.
Applying the patch 2c0765d7ba12813df273cd693a99c4e744f0fbd5 is able to eliminate this problem. The bugfix is ready for download at github.com.
Product
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.9VulDB Meta Temp Score: 8.7
VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: 2c0765d7ba12813df273cd693a99c4e744f0fbd5
Timeline
09/03/2021 🔍04/18/2023 🔍
04/18/2023 🔍
05/05/2023 🔍
Sources
Advisory: 2c0765d7ba12813df273cd693a99c4e744f0fbd5Status: Confirmed
CVE: CVE-2021-40506 (🔍)
Entry
Created: 04/18/2023 16:18Updated: 05/05/2023 22:07
Changes: 04/18/2023 16:18 (41), 05/05/2023 22:07 (11)
Complete: 🔍
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