PT-2020-4534 · Mysql Server+7 · Mysql Server+7

Published 2020-10-20 · Updated 2022-06-30 · CVE-2020-14821

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions MySQL Server versions 8.0.21 and prior

Description The issue is related to insufficient input validation in the InnoDB component of the MySQL Server product. It allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful attacks can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the MySQL Server.

Recommendations For versions 8.0.21 and prior, update to a version later than 8.0.21 to resolve the issue. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2021:3590

ALT-PU-2020-3284

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2020-05083

CESA-2021_3590

CVE-2020-14821

RHSA-2021:3590

RHSA-2021:3811

RHSA-2021_3590

RLSA-2021:3590

USN-4604-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 352

• 🔥 https://github.com/terorie/cve-2021-3449 · Exploit
• 🔥 https://github.com/riptl/cve-2021-3449 · Exploit
• 🔥 https://github.com/motikan2010/CVE-2020-5398 · Exploit
• 🔥 https://github.com/LeadroyaL/cve-2019-14540-exploit · Exploit
• 🔥 https://github.com/irsl/CVE-2020-1967 · Exploit
• 🔥 https://github.com/MBHudson/CVE-2020-1971 · Exploit
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14830 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14791 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14821 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14837 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2021:3590 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4604-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14866 · Vendor Advisory