PT-2020-2621 · Mysql Server+7 · Mysql Server+7

Published 2020-02-14 · Updated 2021-12-30 · CVE-2020-2898

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions MySQL Server version 8.0.19

Description The issue is related to insufficient access control in the MySQL Server component, specifically in the Charsets component. It allows a remote attacker to cause a denial of service by exploiting the vulnerability through the MySQL Protocol. Successful attacks can result in the ability to cause a hang or frequently repeatable crash of the MySQL Server.

Recommendations For version 8.0.19, update to a version that includes the fix for this issue to prevent exploitation. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2020:3732

ALT-PU-2020-1220

ALT-PU-2020-1827

ALT-PU-2020-1885

ALT-PU-2020-1904

BDU:2020-02657

CESA-2020_3732

CVE-2020-2898

RHSA-2020:3518

RHSA-2020:3732

RHSA-2020:3755

RHSA-2020:3757

RHSA-2020_3732

RLSA-2020:3732

USN-4350-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 257

• https://ubuntu.com/security/CVE-2020-2925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2895 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2759 · Vendor Advisory
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2812 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2898 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2892 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-2898 · Vendor Advisory
• https://oracle.com/security-alerts/cpuapr2020.html · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77REFDB7DE4WNKQIRGZTF53RFBQOXQLC · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2763 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2921 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2780 · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2020-3732.html · Vendor Advisory
• https://osv.dev/vulnerability/USN-4350-1 · Vendor Advisory