Oracle MySQL Server up to 8.0.20 Optimizer denial of service

Summaryinfo

A vulnerability described as problematic has been identified in Oracle MySQL Server up to 8.0.20. This affects an unknown part of the component Optimizer. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2020-14725. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Oracle MySQL Server up to 8.0.20 (Database Software). Affected by this issue is an unknown code block 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. CVE summarizes:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

The weakness was released 07/24/2020 (Website). The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2020-14725 since 06/19/2020. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-158073, VDB-158074, VDB-158075 and VDB-158076. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Server

Version

• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.0.15
• 8.0.16
• 8.0.17
• 8.0.18
• 8.0.19
• 8.0.20

License

• open-source

Website

• Vendor: https://www.oracle.com

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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