Oracle Communications Session Border Controller Cz8.2/Cz8.3/Cz8.4 Routing denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.3 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Oracle Communications Session Border Controller Cz8.2/Cz8.3/Cz8.4. It has been declared as critical. This affects an unknown function of the component Routing. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2020-1971. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.
Details
A vulnerability classified as critical was found in Oracle Communications Session Border Controller Cz8.2/Cz8.3/Cz8.4 (Cloud Software). This vulnerability affects some unknown processing of the component Routing. 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 presented 04/21/2021 as Oracle Critical Patch Update Advisory - April 2021. The advisory is shared for download at oracle.com. This vulnerability was named CVE-2020-1971. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.
The vulnerability scanner Nessus provides a plugin with the ID 211827 (Oracle Linux 9 : edk2 (ELSA-2024-12842)), which helps to determine the existence of the flaw in a target environment.
Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (211827). VulDB is the best source for vulnerability data and more expert information about this specific topic.
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: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.9
NVD Vector: 🔍
ADP CISA Base Score: 5.9
ADP CISA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 211827
Nessus Name: Oracle Linux 9 : edk2 (ELSA-2024-12842)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
12/03/2019 🔍04/21/2021 🔍
04/21/2021 🔍
04/23/2021 🔍
05/30/2026 🔍
Sources
Vendor: oracle.comAdvisory: Oracle Critical Patch Update Advisory - April 2021
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2020-1971 (🔍)
GCVE (CVE): GCVE-0-2020-1971
GCVE (VulDB): GCVE-100-173368
Entry
Created: 04/23/2021 06:39Updated: 05/30/2026 16:58
Changes: 04/23/2021 06:39 (40), 04/24/2021 13:58 (6), 04/24/2021 14:04 (18), 06/22/2024 04:11 (17), 11/26/2024 11:12 (2), 05/30/2026 16:58 (11)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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