PT-2021-1745 · Oracle+8 · Mysql Server+7

Published 2021-01-19 · Updated 2022-01-04 · CVE-2021-2065

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 component, specifically in the Optimizer subsystem. This can be exploited by a remote attacker to cause a denial of service via the MySQL network protocol. Successful attacks can result in the ability to cause a hang or frequently repeatable crash of the MySQL Server.

Recommendations For versions 8.0.22 and prior, consider restricting network access to the MySQL Server until a patch is available. As a temporary workaround, limiting the privileges of high-privileged attackers may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2021:3590

ALT-PU-2021-1338

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2021-00443

CESA-2021_3590

CVE-2021-2065

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 · 355

• 🔥 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://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
• https://osv.dev/vulnerability/RLSA-2021:3590 · Vendor Advisory