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Vulnerability DatabaseCVE-2020-2763

CVE-2020-2763: 
MySQL vulnerability analysis and mitigation

Overview

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication) affecting versions 5.6.47 and prior, 5.7.29 and prior and 8.0.19 and prior. This is an easily exploitable vulnerability that allows high privileged attackers with network access via multiple protocols to compromise MySQL Server (Oracle Advisory).

Technical details

The vulnerability has been assigned a CVSS v3.0 Base Score of 4.9 (Medium) with vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. The attack requires network access and high privileges but has low attack complexity and requires no user interaction (NVD, NetApp Advisory).

Impact

Successful exploitation of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. The vulnerability affects only the availability of the system, with no impact on confidentiality or integrity (Oracle Advisory, NetApp Advisory).

Mitigation and workarounds

Oracle has released patches to address this vulnerability in MySQL versions 5.6.48, 5.7.30, and 8.0.20. Users are strongly advised to upgrade to these patched versions. Various Linux distributions have also released security updates including Ubuntu, Fedora, and Gentoo (Ubuntu Advisory, Gentoo Advisory).

Additional resources

Source: This report was generated using AI

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Published date

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