Oracle Database 21c Oracle Database - Machine Learning denial of service ⚔ [Disputed]
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in Oracle Database 21c. The impacted element is an unknown function of the component Oracle Database - Machine Learning. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2021-41495. The attack can be launched remotely. No exploit exists. It is still unclear if this vulnerability genuinely exists.
Details
A vulnerability was found in Oracle Database 21c (Database Software). It has been declared as critical. This vulnerability affects an unknown function of the component Oracle Database - Machine Learning. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.
The weakness was disclosed 10/19/2022 as Oracle Critical Patch Update Advisory - October 2022. The advisory is shared for download at oracle.com. This vulnerability was named CVE-2021-41495. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.
The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 216170 (SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python3-numpy (SUSE-SU-2025:0424-1)), which helps to determine the existence of the flaw in a target environment.
A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (216170). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.oracle.com
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.7
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 216170
Nessus Name: SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python3-numpy (SUSE-SU-2025:0424-1)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
09/20/2021 🔍10/19/2022 🔍
10/19/2022 🔍
10/19/2022 🔍
02/13/2025 🔍
Sources
Vendor: oracle.comAdvisory: Oracle Critical Patch Update Advisory - October 2022
Status: Confirmed
Disputed: 🔍
CVE: CVE-2021-41495 (🔍)
GCVE (CVE): GCVE-0-2021-41495
GCVE (VulDB): GCVE-100-211372
Entry
Created: 10/19/2022 08:29Updated: 02/13/2025 01:21
Changes: 10/19/2022 08:29 (39), 11/10/2022 13:10 (2), 11/10/2022 13:16 (18), 08/04/2024 07:09 (17), 02/13/2025 01:21 (3)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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