PT-2021-1907 · Oracle+8 · Mysql Server+7

Published 2021-01-19 · Updated 2022-01-04 · CVE-2021-2002

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 8.0.22 and prior

Description The issue is related to insufficient access control in the MySQL Server replication component, allowing a remote attacker to cause a denial of service using the MySQL protocol. This can result in the ability to cause a hang or frequently repeatable crash of the MySQL Server. The estimated number of potentially affected devices is not provided.

Recommendations For MySQL Server versions 8.0.22 and prior, update to a version that contains a 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. Additionally, restrict access to the replication component to prevent unauthorized use.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2021:3590

ALT-PU-2021-1338

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2021-00693

CESA-2021_3590

CVE-2021-2002

OESA-2021-1113

RHSA-2021:3590

RHSA-2021:3811

RHSA-2021_3590

RLSA-2021:3590

USN-4716-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 356

• 🔥 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://oracle.com/security-alerts/cpujan2021.html · Vendor Advisory
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4716-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-2002 · Security Note
• https://ubuntu.com/security/CVE-2021-2002 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2021:3590 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2024 · Security Note
• https://ubuntu.com/security/CVE-2021-2060 · Vendor Advisory