Oracle MySQL Connectors up to 8.0.19/5.1.48 Connector/J denial of service

Summaryinfo

A vulnerability marked as critical has been reported in Oracle MySQL Connectors up to 8.0.19/5.1.48. The affected element is an unknown function of the component Connector/J. This manipulation causes denial of service. This vulnerability is tracked as CVE-2020-2934. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Oracle MySQL Connectors up to 8.0.19/5.1.48 (Database Software). Affected by this vulnerability is an unknown code of the component Connector/J. 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 confidentiality, integrity, and availability. The summary by CVE is:

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.19 and prior and 5.1.48 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Connectors accessible data as well as unauthorized read access to a subset of MySQL Connectors accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Connectors. CVSS 3.0 Base Score 5.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L).

The weakness was disclosed 04/15/2020 as Oracle Critical Patch Update Advisory - April 2020 as confirmed advisory (Website). The advisory is shared at oracle.com. This vulnerability is known as CVE-2020-2934. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-153686, VDB-153290, VDB-153291 and VDB-153293 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Database Software

Vendor

• Oracle

Name

• MySQL Connectors

Version

• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3
• 5.1.4
• 5.1.5
• 5.1.6
• 5.1.7
• 5.1.8
• 5.1.9
• 5.1.10
• 5.1.11
• 5.1.12
• 5.1.13
• 5.1.14
• 5.1.15
• 5.1.16
• 5.1.17
• 5.1.18
• 5.1.19
• 5.1.20
• 5.1.21
• 5.1.22
• 5.1.23
• 5.1.24
• 5.1.25
• 5.1.26
• 5.1.27
• 5.1.28
• 5.1.29
• 5.1.30
• 5.1.31
• 5.1.32
• 5.1.33
• 5.1.34
• 5.1.35
• 5.1.36
• 5.1.37
• 5.1.38
• 5.1.39
• 5.1.40
• 5.1.41
• 5.1.42
• 5.1.43
• 5.1.44
• 5.1.45
• 5.1.46
• 5.1.47
• 5.1.48
• 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

License

• commercial

Website

• Vendor: https://www.oracle.com

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion