Oracle MySQL Client up to 8.0.19 C API denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Oracle MySQL Client up to 8.0.19. This affects an unknown function of the component C API. Performing a manipulation results in denial of service. This vulnerability was named CVE-2021-2006. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Oracle MySQL Client up to 8.0.19 (Database Software). This affects some unknown processing of the component C API. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was presented 01/20/2021 as Oracle Critical Patch Update Advisory - January 2021. It is possible to read the advisory at oracle.com. This vulnerability is uniquely identified as CVE-2021-2006. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 249886 (Linux Distros Unpatched Vulnerability : CVE-2021-2006), 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 (249886). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

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: 249886
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-2006

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/09/2020 🔍
01/20/2021 +42 days 🔍
01/20/2021 +0 days 🔍
01/20/2021 +0 days 🔍
08/18/2025 +1671 days 🔍

Sourcesinfo

Vendor: oracle.com

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

CVE: CVE-2021-2006 (🔍)
GCVE (CVE): GCVE-0-2021-2006
GCVE (VulDB): GCVE-100-168363

Entryinfo

Created: 01/20/2021 19:47
Updated: 08/18/2025 04:36
Changes: 01/20/2021 19:47 (40), 02/17/2021 11:35 (5), 02/17/2021 11:41 (8), 08/18/2025 04:36 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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