Oracle MySQL Server up to 5.7.34/8.0.25 InnoDB denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Oracle MySQL Server up to 5.7.34/8.0.25. It has been declared as critical. The impacted element is an unknown function of the component InnoDB. Executing a manipulation can lead to denial of service. The identification of this vulnerability is CVE-2021-2389. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Oracle MySQL Server up to 5.7.34/8.0.25 (Database Software). This vulnerability affects some unknown processing of the component InnoDB. 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 shared 07/20/2021 as Oracle Critical Patch Update Advisory - July 2021. The advisory is shared for download at oracle.com. This vulnerability was named CVE-2021-2389. 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 236627 (Alibaba Cloud Linux 3 : 0034: mariadb:10.5 (ALINUX3-SA-2022:0034)), 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 (236627). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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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Nessus ID: 236627
Nessus Name: Alibaba Cloud Linux 3 : 0034: mariadb:10.5 (ALINUX3-SA-2022:0034)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/09/2020 🔍
07/20/2021 +222 days 🔍
07/20/2021 +0 days 🔍
07/21/2021 +1 days 🔍
05/19/2025 +1398 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - July 2021
Status: Confirmed

CVE: CVE-2021-2389 (🔍)
GCVE (CVE): GCVE-0-2021-2389
GCVE (VulDB): GCVE-100-179164

Entryinfo

Created: 07/21/2021 10:37
Updated: 05/19/2025 23:34
Changes: 07/21/2021 10:37 (40), 07/24/2021 20:32 (2), 07/24/2021 20:39 (1), 05/19/2025 23:34 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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