PT-2020-4541 · Mysql Server+7 · Mysql Server+7

Published 2020-10-20 · Updated 2022-07-27 · CVE-2020-14830

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 Server: Optimizer component of the MySQL Server system management database. This can be exploited by a remote attacker to cause a denial of service using the MySQL network protocol. The vulnerability allows an attacker with network access via multiple protocols to compromise the MySQL Server, resulting in the ability to cause a hang or frequently repeatable crash of the server.

Recommendations For versions 8.0.21 and prior, 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.

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:2020-05090

CESA-2021_3590

CVE-2020-14830

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://osv.dev/vulnerability/CVE-2020-14830 · 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