Oracle MySQL Server up to 8.0.21 Optimizer denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Oracle MySQL Server up to 8.0.21. This issue affects some unknown processing of the component Optimizer. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2020-14773. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 8.0.21 (Database Software). It has been rated as critical. This issue affects some unknown functionality of the component Optimizer. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was disclosed 10/20/2020 as Oracle Critical Patch Update Advisory - October 2020. The advisory is shared at oracle.com. The identification of this vulnerability is CVE-2020-14773. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 246632 (Linux Distros Unpatched Vulnerability : CVE-2020-14773), 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 (246632). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 246632
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2020-14773

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

06/19/2020 🔍
10/20/2020 +123 days 🔍
10/20/2020 +0 days 🔍
10/21/2020 +1 days 🔍
08/09/2025 +1753 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - October 2020
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-14773 (🔍)
GCVE (CVE): GCVE-0-2020-14773
GCVE (VulDB): GCVE-100-163277

Entryinfo

Created: 10/21/2020 20:48
Updated: 08/09/2025 18:17
Changes: 10/21/2020 20:48 (40), 11/24/2020 18:17 (3), 11/24/2020 18:23 (8), 08/09/2025 18:17 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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